You don't need calculator for this

Probability Level 1

There are 8 white and 7 red balls in a box. Draw two balls, one at a time with return.

If the probability of drawing two white balls can be expressed as a b \dfrac ab , where a a and b b are coprime positive integers, submit your answer as b b .


The answer is 225.

Nazmus Sakib by Nazmus sakib , 24, Bangladesh

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Nazmus Sakib
Sep 25, 2017

8 15 × 8 15 \dfrac{8}{15} \times \dfrac{8}{15}

= 64 225 =\dfrac{64}{225}

If your answer is in a form of a b , \dfrac{a}{b}, then enter just b . b.

So ans is 225

2 Helpful 0 Interesting 0 Brilliant 0 Confused

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...