জব প্রিপারেশন

451 Math

In a certain sock drawer, there are 4 pairs black socks, 3 pairs of back socks, 3 pairs of gray of gray socks and 2 pairs of corage socks. It socks removed at random without replaced, what is the minimum number of socks that must removes in order to ensure that two socks of the the same color have been removed?

A)11

B)4

C)3

D)7

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452 Math

In a class, average mark in an exam is 70. The average of student of student who scored below 6o is 50. The avearge of srudents who scrord 60 or more is 75 It the total number of students in this calss is 20, how many students scored 60 or more?

A)4

B)8

C)10

D)16

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453 Math

Two tanks A and B are are filled with petrol. Tank A holds 600 litre more than tank B. If 100 litre of petrol were taken out from each tank A would then contain 3 times as much petrol as tank B. What is the total number of litre of fuel in the two full tanks?

A)1400

B)1200

C)1000

D)900

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454 Math

How mant psoitive intigers less than 20 are equal to sum of a positive multiple of 3 and a positive multiple of 4?

A)2

B)5

C)7

D)10

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455 Math

If three metal cubes having sides of 3 cm, 4 cm and 5 cm were melted to make a single cube, what would be the length of the new cube?

A)7.5cm

B)6.5 cm

C)6 cm

D)7 cm

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456 Math

Two items were sold together for taka 3600. One item was sold at 20% profit while the other was sold at 20% loss. How much profit or loss was made by the sale?

A)No profit or less

B)Tk. 300 profit

C)Tk. 300 loss

D)tk. profit

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457 Math

Baki lives miles west of Raju's . Rafiq lives 3 lives north of Raju's house and 2 miles west of Diba's house. What is the straght line distance from Baki's House to Diba's house?

A)5 miles

B)6 miles

C)7 miles

D)10 miles

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458 Math

If the average of 7,13, p and q is 17, what is the average of (p+11) and (q-9)?

A)50

B)25

C)21

D)14

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459 Math

M is a girl has the same number of brothers as sisters. N is a boy and has twice as amny sisters as brothers. M and n are the children of Q. how many children does Q have?

A)2

B)3

C)5

D)7

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460 Math

In a legislative body of 200 people the name Democrats is 50 less than 4 times the numbers of Republicans. If one firth of the legislators are neither Republican nor Democrat, how may of the legislators are Republicans?

A)42

B)50

C)71

D)95

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461 Math

Arafat has Tk. 420. he purchased fifty mangoes and thirty oranges with whole amount. He then chose to return six mangoes for nine oranges as both quantities are equality priced. What is the price of each mango?

A)4.5

B)5

C)5.5

D)6

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462 Math

P starts jogging from point X to point. half an hour later his friend 'R" who jogs mile per hour slower than twice P's rate starts the same pint and follows the same path. If 'R' overtakes 'P' in 2 hours, how many miles will "R" have covered?

A)2.2

B)3.33

C)48%

D)6

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463 Math

In a class 120 studets are mile and 100 students are female.25% of the male students and 20% of the female students are engineering students. 20% of the male engineering students and 25% of the students passed the exam ?

A)5%

B)10%

C)16%

D)22%

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464 Math

If the integer A is multiple of 6, the integer B is multiple of 3 and A>B>0, then msut be multiple of following integers?

A)6

B)8

C)9

D)10

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465 Math

Six years ago, Kalam was P times as old as Kalam was. If Kalam was. If Rahim is now 17 years old, how old is Kalam now interns of P?

A)11/P+6

B)P/11+6

C)17-P/6

D)17/P

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466 Math

Who won the Nobel Prize in Economics in 2017?

A)Angus Dealon

B)Tomash Lindahl

C)Richarrd H thaker

D)Paul Modrich

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467 Math

In a student dormitory there was enough food to feed 300 students for 15 days. Because of admission of some new students , the food only lasted for 10 days. How many new students were admitted to the dormitory ?

A)100

B)125

C)150

D)175

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468 Math

If 5x+13=31 what is the value of

A)49

B)13

C)7

D)7

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469 Math

What is the value of x, if

A)

B)

C)

D)

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470 Math

If a square region has area n, what is the length of the diagonal of the square in terms of n?

A)

B)

C)

D)2n

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471 Math

A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was

A)

B)

C)

D)

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472 Math

Which of the following products cannot be placed in compartment 1?

A)U

B)V

C)W

D)X

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473 Math

If X is placed in compartment 3, W must be placed in compartment __

A)1

B)2

C)4

D)5

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474 Math

If U is placed in compartment 5, which of the following products must be placed in compartment 6?

A)V

B)W

C)X

D)Y

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475 Math

If Z is placed in compartment 3, immediately to the right of x , which of the following products must be placed in compartment 5?

A)U

B)V

C)W

D)Y

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476 Math

If p denotes + , Q dentes -, R denotes , and S denotes X, then what is the value of 18s36R12Q6p7?

A)115

B)55

C)25

D)None of them

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477 Math

If the word 'NATION' is writen as OCWMTT, how 'COUNTR' would be written in that code?

A)DQXRYX

B)DPXRYX

C)DCXRYX

D)Noe of these

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478 Math

If the letter M was removed from the alphabet, what would the middle letter of the alphabet be?

A)O

B)N

C)P

D)Q

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479 Math

Which of the following numbers can be placed at the sing of interrogation? 6 8 7 36 64 49 24 48 ?

A)35

B)30

C)45

D)40

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480 Math

A square water tank , 2.5 meter deep, can hold 80000 liters of water. Find the length of each side of the tank in meter?

A)5.2

B)4.5

C)

D)

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481 Math

27 22 50 13 12 26 9 2 ?

A)12

B)39

C)18

D)24

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482 Math

If a worker can packs 1/6 of a carton of canned food in 15 minutes and there are 40 workers in a factory, how many cartons should be packed in the factory in hours?

A)33

B)

C)

D)

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483 Math

If a triabgle has base B and the altitude of the triangle is twise the base, then the area of the triangle is

A)1/2 AB

B)AB

C)1/

D)

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484 Math

A 5 feet stick is cut into two parts so that one part is 2/3 of the other. How long in inches is the shorten segment?

A)3

B)24

C)

D)36

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485 Math

Petrol tank that is 1/2 full has 8 gallons petrol removed. The tank is then 1/10 full. What is the capacity, in gallons, of the tank?

A)40

B)

C)20

D)30

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486 Math

Startting from Town S, Mr. Ahsan drove straight East for 3 Kms, Then he turned lest and drove straight North for 4 kms and stopped at town T. What is the straight line distance from town to town T?

A)7 kms

B)5 kms

C)8 kms

D)kms

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487 Math

If a square region (PQRS) has an area of 4 square feet, what is the length of its diagonal (PR)?

A)4 feet

B)2 feet

C)8 feet

D)feet

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488 Math

In the figure below, the middle point on segment PQ? is :

A)(1.5, 1)

B)(1, 1.5)

C)(1,2)

D)(1,0)

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489 Math

If

A)xy

B)

C)

D)

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490 Math

If

A)3

B)27

C)8

D)216

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491 Math

which value of x satisfies the inequality

A)x<2

B)x2

C)x2

D)x>2

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492 Math

If

A)2

B)3

C)1

D)4

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493 Math

In the following figure, two equal circles are cut out of a rectangle of card of dimensions 16 by 8. The circle have the maximum diameter possible. What is the approximate area of the paper remaining after the circles have been cut out?

A)104

B)54

C)27

D)13

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494 Math

Refer to the above figure (Not drawn to scale), AB=7 BC= 12, CD= 5, DE= 14 , EF=8 FG=11 , BC, DE and FG are parallel with each other and are perpendicular to AB, CD and EF. What is the value of AG?

A)15

B)20

C)30

D)25

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495 Math

The result of subtraction of two numbers is equal to

A)9

B)15

C)18

D)21

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496 Math

If a>b and a>c, which of the following must be greater than 0?

A)

B)

C)

D)

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497 Math

Four persons can compte a job in 8 days. After four days two persons have left the work. How many days should it take for the remaining persons to complete the work?

A)10

B)6

C)4

D)8

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498 Math

If a mechant offers a discount of 30% on the price, then he/she makes a loss 16% percentage of profit of loss will the merchant make if sell at a discount of 10% the list price?

A)6.25% profit

B)6% profit

C)0.8% profit

D)8% profit

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499 Math

How many 1- inch square tiles would it take to cover the floor of a closet that has dimensions 5 feet by 4 feet?

A)20

B)240

C)2160

D)2880

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500 Math

A train travelling at 100 km per hour overtakes motorbike travelling at a speed of 65 km per hour in 40 seconds. What is the length of the train in meters

A)400 metrs

B)450 meters

C)500 meters

D)550 meters

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