SSC Government Jobs Exams Numerical Ability Probability

A jar contain 10 red marbles and 30 green ones. How many red marbles must be added to the jar so that 60% of the marbles will be red?

a. 25
b. 30
c. 35
d. 40

Read Solution (Total 1)

SSC Other Question

21, 25, 33, 49, 81,... A fruit-seller buys x guavas for Rs.y and sells y guavas for Rs. x. If x>y, then he made-

a. x2 – y2 / xy % loss
b. x2 – y2 / xy % gain
c. x2 – y2 / y2 % loss
d. x2 – y2 / y2 * 100% gain