A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increase by 10%. What is the radio of his new profit to his usual profit?

A clock strikes once at 1 O'clock, twice at 2 O'clock twice at 2 O'clock, thrice at 3 O'clock and so on. How m...

The primeter of a rectangle is 26 cm. The rectangle is 26 cm. The rectangle is coverted to a square by triplin...

In an examination, 34% of the students failed in mathematics and 42% failed in English. If 20% of the student...

125 gallon of a mixture contain 20% water. What amount of additional water should be added such that water con...

At a symposium 20% of the professors are psychologist, 60% are biologist and the remaining 12 professors are e...

In a department 3/5 of the workers are men and the rest women. If 1/2 of the men and 3/7 of the women in the d...