a,b and c are the three sums of money such that b is the simple interest on a and c is the simple interest on b for the same time and same rate. Which is the following is correct?     (a) abc=1 (b) `c^2`=ab (c) `b^2`=ac (d) `a^2`=bc

If x , y , z are three sums of money such that y is the simple interest on x , z is the simple interest on y for the same time and at the same rate of interest, then we have x^2=y z (b) y^2=x z (c) z^2=x y (d) x y z=1

There are three amounts a,b and c, such that b is the simple interest on c and c is the simple interest on a. Which of the following must always be true?

The compound interest on a certain sum of money at 5 % for 2 yr is Rs 328 . The simple interest on that sum at the same rate for the same period of time will be

If the compound interest on a sum for 2 years at 12 1/2% per annum is Rs 510, the simple interest on the same sum at the same rate for the same period of time is: (a) Rs 400 (b) Rs 450 (c) Rs 460 (d) Rs 480

On a sum of money, the simple interest for 2 years is Rs 660, while the compound interest is Rs 696.30, the rate of interest being the same in both the cases. The rate of interest is (a) 10% (b) 10.5% (c) 12% (d) None of these

If the rate increases by 2%, the simple interest received on a sum of money increases by Rs 108. If the time period is increased by 2 years, the simple interest on the same sum increases by Rs 180. The sum is: (a) Rs 1800 (b) Rs 3600 (c) Rs 5400 (d) Data inadequate