If the difference between the simple and the compound interest earned on a sum of money at the rate of 5% p.a. for 2 years is Rs. 16, find the principal.
(a) Rs. 6,200
(b) Rs. 6,400 (c) Rs. 6,250 (d) Cannot be determined

In a certain code language `La Ke Ta' means `go and swim' and `Ne La Se' means `you swim here' and `Pe Ke Ne Ta' means `he and you go'. Which of the following is the code for `here' in that code language ?
(a) Cannot be determined
(b) La (c) Ne (d) Se

A batsman in his 12th innings makes a score of 63 runs and there by increases his average scores by 2. What is his average after the 12th innings?
(a) 13
(b) 41 (c) 49 (d) 87