CBSE - Aptitude Mathematics

The probability of 4 turning up at least once in two tosses of a fair die, is : 1. 1/9 2. 1/4 3. 11/36 4. 25/36

The simple interest on a sum of money is 1/9th of the principal and the number of years is equal to the rate per cent. The rate of interest per annum is 1. 9% 2. 4 1/2% 3. 3 1/3% 4. 3%

A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work is done by A in 1) 5 days 2) 6 days 3) 10 days 4) 10 1/2 days

1/2 : 2/3 : 3/4 is the same as 1. 2 : 3/2 : 4/3 2. 6 : 9 : 10 3. 5 : 7 : 9 4. 12 : 16 : 18

The curve x = 3 (cos t + sin t) and y = 4 (cos t - sin t) is: 1. a circle 2. a parabola 3. an ellipse 4. a hyperbola