R-SAT Exam

This question is based on the following information. Children in a class play only one or two or all the three games hockey, tennis and cricket.10 children play only cricket,16 children play only hockey, 14 children play only tennis ,6 children play only two games hockey and tennis,8 children play only two games cricket and hockey and 8 children play only two games tennis and cricket.4 children play all the three games. In how many children play hockey?
option
A. 16
B. 25
C. 30
D. 34
E. None Of These

Read Solution (Total 4)

R-SAT Other Question

What is the value of 1*1! + 2*2! + 3!*3! + ............ n*n!, where n! means n factorial or n(n-1)(n-2)...1
A. (n+1)! B. (n+1)! - 1! C. (n+1)!* 1!
f f(x) = x for all x, g(x) = -f(x) for - ∞ < x < 0, g(x) = f(x) for 0 ≤ x ∞ , then g(x) cannot be
A. -1 B. 1 C. 27/29 D. 0 E. None of Thes