Self Maths Puzzle Numerical Ability

sum of n factorials?

Read Solution (Total 2)

Self Other Question

please slove it as early as possible
x^1/2 + y = 7
x + y^1/2 = 11

prove that x = 9 and y = 4
If an examination 63% of the candidates in English,65% passed in Mathematics, and 27% failed in both subjects.What is the pass percentage?
(a)55%
(b)60%
(c)65%
(d)None.