A vendor buys bananas at 12 for 45 and sells at 5 for 35. What will be the gain ? 

Let p, q and r be the fraction such that p<q<r. If r is divided by p, the result is 5/2, which exceeds q by 7/4. If $$p+q+r=1{11\over12} $$ then what is the value of (r-p)?

A sells to B an iron box at 10% profit. B sells it to C for 20% profit. If C pays Rs. 528 then then the cost price of A is

What would be the compound interest accrued on an amount of Rs.7850 at the rate of 14% per annum in two years?

What is the value of X ?, if 7580 - X = 3440

Let x be the least number divisible by 13, such that when x is divided by 4, 5, 6, 7, 8 and 12, the remainder in each case is 2. The sum of the digits of x is:

If a chord of length 30 cm is at a distance of 8 cm from the center of the circle, then the length of the chord of the same circle which is at a distance of 15 cm from the center is equal to

A circular wire of radius 42 cm is bent in the form of a rectangle whose sides are in the ratio of 6 : 5 . The smaller side of the rectangle is
 ( Take $$ π = 22\over 7$$ ) :