Brainstorm

Probability Level 2

In a closed jar, there are three strawberry candies, two mango candies and five pineapple candies. You can't see inside the jar. Now, how many toffees you must take out from the jar to make sure that you have one of each flavor?


The answer is 9.

Pratyush Pushkar by Pratyush Pushkar , 28, India

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.

2 solutions

Edwin Gray
Nov 5, 2018

You must choose 1 more than the sum of the 2 largest choices. Ed Gray

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Pratyush Pushkar
May 17, 2015

9

Explanation: 2 < 3 < 5 To find out the required number of candies, take one in place of the least number (i.e. take one mango candy) and then add all the greater numbers (i.e. three strawberry and five pineapple candies) to it.

Required number of balls = 1 + 3 + 5 = 9.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...