জব প্রিপারেশন

19901 Math

If x and y are consecutive positive integers, which of the following must be an even integer?

A)x

B)y

C)xy/2

D)xy

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19902 Math

There are n students in a school. If r% among the students are 12 years or younger, which of the following expressions represents the number of students who are older than 12?

A)n(1-r)

B)100(1-r)

C)n(1-r) /100

D)n(100-r)/100

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19903 Math

The ratio between the perimeter and the breadth of a rectangular is 5 : 1 . If the area of the rectangle is 216 cm2 , what is the length of the rectangle?

A)16 cm

B)18 cm

C)20 cm

D)22 cm

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19904 Math

If (x +y) >5 and (x -y)> 3, then which of the following gives all and only possible values of x?

A)x <3

B)x> 3

C)x> 4

D)x <5

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19905 Math

Three boys have marbles in the rotio of 19 : 5 : 3 If the boy with the least number has 9 marbles , how many marbles does the boy with the highest number have?

A)57

B)15

C)76

D)38

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19906 Math

The area of a rectangle R with width 4 ft is equal to the area of a square S , which has a perimeter of 24 ft. the perimeter of the rectangle R, in feet, is __

A)9

B)16

C)24

D)26

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19907 Math

In a class of 120 students 70 percent can speak only Bengali and the rest can speak English . If 25 percent of those in the class who can speak English can also speak Bengali , how many of the students in the class can speak bengali?

A)39

B)48

C)84

D)93

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19908 Math

A lamp is manufactured to sell for $35.00, which yields a profit of 25% of cost . If the profit is to be reduced to 15% of cost , what will be the new retail price of the lamp?

A)$31.50

B)$28.00

C)$21.00

D)$32.20

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19909 Math

In triangle ABC, AB = AC . All of the following statements are true except__

A)AB

B)AC < AB + BC

C)BC + AC> AB + BC

D)AC + BC = AB + BC

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19910 Math

If an inspector rejects 0.08% of a product as defective , how many units of the product will he examine in order to reject 2 ?

A)500

B)1500

C)2000

D)2500

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19911 Math

There are 15 balls in a box 8 balls are green 4 are blue and 3 are white. Then 1 green and 1 blue balls are taken from the box and put away. what is the probability that a blue ball is selected at random from the box?

A)3?15

B)15-Apr

C)13-Mar

D)13-Apr

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19912 Math

A short distance athlete has taken 60 seconds to cover 100 meters . If he makes 30 steps in 9 seconds , how many steps has he taken in that time?

A)130

B)170

C)173

D)None of these

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19913 Math

Three angles of a triangle are in proportion 5 : 6 : 7. Then what is the difference in degrees between the biggest and the smallest angles?

A)

B)

C)

D)

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19914 Math

If the length of each of the sides of three square garden's plots is increased by 50 percent, by what percent is the sum of the areas of the three plots increased ?

A)375%

B)200%

C)150%

D)125%

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19915 Math

A manufacturer sells three products i.e A, B and C . Product A costs 200 and sells for 250, Product B costs 150 and sells for 180 , product C costs 100 adn sells for 110. On which product, he has maximum percentage of profit?

A)B only

B)A and B both

C)A only

D)C only

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19916 Math

A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the larger field is greater than the area of the smaller field by what amount ?

A)2K

B)5 K

C)6K

D)7K

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19917 Math

If a, b and c are 3 consecutive integers and a>b>c, Which of the follwoing has the maximum value?

A)b+(c/a)

B)c+(a/b)

C)c+(b/a)

D)a+(b/c)

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19918 Math

Sam can mow a lawn in 20 min, while takes 10 min longer to mow the same lawn. How long will they take to mow the lawn if they work together?

A)12 min

B)14 min

C)15 min

D)more than 15 min

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19919 Math

If two planes leave the same airport at 1:00 pm, how many km apart will they at 3:00 one traverls directly at 150 km/h and the other travels directly west at 200 km/h?

A)50 km

B)500 km

C)4000 km

D)600 km

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19920 Math

If an inspector rejects 0.8% of a product as defective, how many units of the produce? will he examined in order to rejected 2?

A)500

B)1500

C)2000

D)2500

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19921 Math

A two digit number has 3 in its unit digit. The sum its digits is one seventh of the number itsself. What is the number?

A)53

B)63

C)73

D)83

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19922 Math

A wholesaler sells goods to a retiler at profilt of 20%. The retailer sells to the customs ,Who pays 80% more than the cost of the wholesaler . What is the relater's profit?

A)40%

B)50%

C)60%

D)70%

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19923 Math

If an integer y is subtracted from an integer x, and the result is grater than x, then y must be.

A)equal to x

B)less than 0

C)less than x

D)greater than 0

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19924 Math

A train went 300 km from City to city at an average speed of 100 km/h. At what speed did it travel on the way back if/his its average speed for the whole trip was 120 km/h

A)120 km/h

B)125 km/h

C)130 km/h

D)150 km/h

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19925 Math

Of two groups of tourists, each has 60 people/. If threee fourth (i.e 75%) of the first group and two third of the second group board buses to travel to a museum. How many more people of the first group board buses than that of the second group?

A)3

B)5

C)10

D)15

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19926 Math

Six consecutive whole numbers are given. The sum of the first three numbers is 27 What is the sum of the last three numbers?3

A)30

B)32

C)36

D)38

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19927 Math

Three individuals contributed Tk. 8000 each toward the purchase of a computer. If they bought the computer on sale for Tk. 19500 plus 10% sales tax, how much money should be refunded to each individual ?

A)Tk. 650

B)Tk. 850

C)Tk. 1500

D)Tk. 1950

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19928 Math

A 10% monthly salary increase resulted in a Tk. 9000 per year increase in salary for an employee. What was his monthly salary before the increase ?

A)Tk. 7500

B)Tk. 9000

C)Tk. 5000

D)Tk. 12000

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19929 Math

when a certain number is divided by 7, the remainder is 0. if the remainder is not 0 when the number is divided by 14, then the remainder must be __

A)7

B)5

C)3

D)8

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19930 Math

A mixture of 20 sprit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%

A)2

B)4

C)5

D)6

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19931 Math

How much interest will Tk. 1000 earn in one year at an annual interest rate of 20% if interest rate is compounded every 6 months?

A)200

B)205

C)208

D)210

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19932 Math

If x and y are consecutive positive integers which of the following must be an even integer?

A)x

B)y

C)xy /2

D)xy

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19933 Math

A gardrn of 100 m length and 60 m width has a walkway of 2 m width hon every side. what is the area of the area of the garden , in square meter , excluding the walk way?

A)5684

B)6000

C)5376

D)5123

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19934 Math

An article when sold at a gain of 5% yields Tk. 15 more than when sold at a loss of 5%. Its cost price would be__

A)Tk. 100

B)Tk. 150

C)Tk. 200

D)Tk. 250

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19935 Math

A)0

B)1

C)1/abc

D)abc

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19936 Math

For what value of x is

A)2

B)3

C)4

D)6

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19937 Math

A is 30% more efficient than B. How much time will they, working together , take to complete a job which a alone could have done in 23 days?

A)13 days

B)15 days

C)10 days

D)None of these

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19938 Math

The lengths of sides of a triangle are in the ratio of 3 to 5 to 6. If the perimeter of the triangle is 70, what is the length of the longest side?

A)10

B)15

C)25

D)30

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19939 Math

Square of a number plus two times the number equal 63. what is the number ?

A)7

B)9

C)-9

D)Try your self

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19940 Math

If the perimeter of a certain rectangle is 76 m and its area is 360 m2, then what is the length of its shortest side?

A)18

B)15

C)13

D)10

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19941 Math

If x = and y = find the value of

A)12

B)10

C)8

D)6

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19942 Math

If two planes leave the same airport at 1 : 00 PM, how many miles apart will they be at 3 : 00 PM, if one travels directly north at 150 mph and the other travels directly west at 200 mph?

A)50 miles

B)100 miles

C)500 miles

D)700 miles

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19943 Math

In a club 50% of the male voters and 80% of the female voters voted for candidate A . If candidate A received 70% of the total votes, what is the ratio of male to female voters?

A)3-Jan

B)2-Jan

C)4-Jan

D)4-Mar

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19944 Math

Four liters of milk are to be poured into a 2 liter bottle and a 4 liter bottle . If each bottle is to be filled to the same fraction of its capacity, how many liters of milk should be poured into the 4 liter bottle?

A)3-Jul

B)3-Feb

C)3-Aug

D)3-Apr

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19945 Math

One dozen eggs and ten pound of apples are currently of the same price . if the price of a dozen eggs rises by 10% and that of apples rises by 2% how much more will it cost to buy a dozen of eggs and ten pounds of apples?

A)2%

B)6%

C)10%

D)12%

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19946 Math

An iron rod that weighs 24 kg is cut into two pieces so that one of these pieces weighs 16kg and is 34 m long . If the weight of each piece is proportional to its length , how long is the other piece?

A)11 m

B)17 m

C)34 m

D)68 m

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19947 Math

A wholesaler sells goods to a retailer at a profit of 20% . The retailer sells to the customer , who pay 80% more than the cost of the wholesaler . what is the retailer's porfit?

A)30%

B)40%

C)50%

D)60%

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19948 Math

The price of a pen is 25% more than the price of a book. The price of a pen holder is 50% more than the price of the book. How much is the price of the pen holder more than the price of the pen?

A)20%

B)25%

C)50%

D)37.50%

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19949 Math

If the length of each of the sides of three square garden's plots is increased by 50 percent, by what percent is the sum the areas of the three plots increased?

A)125%

B)150%

C)200%

D)375%

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19950 Math

A car goes 15 km on a gallon of octane. When it is 50 km/h. When the car is driven at 60 km/h, it only goes 80% as far. How many gallons of octans are needed to travel 200 km it half the distance is traveled at 50 km/h and the rest 60 km/h ?

A)15

B)16.67

C)10.6

D)14

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