A survey of 500 television viewers produced the following information; 285 watch football, 195 watch hockey, 115 watch basketball, 50 do not watch any of the three games, 45 watch football and basketball, 70 watch football and hockey, 50 watch hockey and basketball. (i) How many watch all the three games? (ii) How many watch exactly one of the three games?

How do you find the Maclaurin series for tanx?

Why is Axiom 5, in the list of Euclid’s axioms, considered a ‘universal truth’? (Note that the equation is not about the fifth postulate.)

The smallest composite number is ______.

(a) 2

(b) 4

(c) 1

(d) None of these

Find the arithmetic mean of the first ten odd natural numbers.

A boat goes 24 km upstream and 28 km downstream in 6 hours. It goes 30 km upstream and 21 km downstream in 6 hours and 30 minutes. The speed of the boat in still water is

A. 10 km/hr

B. 4 km/hr

C. 14 km/hr

D. 6 km/hr