Question

The probaility of selecting a red ball at random from a jar that contains only red,blue and orange ball is 1/4.The probability of selecting a blue ball at random from the same jar is 1/3.If this jar contains 10 orange balls,then what is the total number of balls in the jar?

Answer 1

ans:24
5/12 x=10
x=24
3/12 x=6
4/12 x=8
total balls=6+8+10=24