A man bought 20 shares of Rs 50 at 5 discount, the rate of dividend being `13 1/2%` . The rate of interest obtained is: `12 1/2%` (b) `13 1/2%` (c) `15 %` (d) `16 2/3%`

Find 12 1/2% of 64

Goods were bought for Rs 600 and sold the same day for Rs 688.50 at a credit of 9 months and thus gaining 2%. The rate of interest per annum is 16(2)/(3)% (b) 14(1)/(2)% (c) 13(1)/(3)% (d) 15%

If there is an error of 2% in measuring the length of simple pendulum, then percentage error in its period is: 1% (b) 2% (c) 3% (d) 4%

The true discount on a certain sum of money due 2 2/3 years hence, is Rs 150 and the simple interest on the same sum for the same time and at the same rate is Rs 200. Interest rate per annum is (a) 10% (b) 12% (c) 12 1/2% (d) 8 1/2%

A sum of Rs. 400/- amounts to Rs. 480/-in 4 years. What will it amount to if the rate of interest in increased by 2% ?

If the list price of an article is Rs. 50 and the rate of sales tax is 2%, then its selling price after tax is ____.