Question

In a box there are12 blue ,X red balls & green balls , probability of choosing one red ball from the given box is `(1)/(3) ` .Then find the sum of red and blue balls in the box?
A. 40
B. 24
C. 28
D. 36

Answer 1

Correct Answer - C
`Atq, (x) /(x+32)=(1)/(3)`
`x=16`
`therefore `sum of red & blue balls `=16+12=28`