Book Maths Puzzle Permutation and Combination

How can you get 6 cups of a liquid using a container that holds 4 cups and another one that holds 9 cups?

Read Solution (Total 1)

4C0 * 9C6 + 4C1 * 9C5 + 4C2 * 9C4 + 4C3 * 9C3 + 4C4 * 9C2
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Book Other Question

The length of a rectangular park is 4 m longer than the width. If the area of the park is 140 m^, find the length and the width. If the original number is 2400 and you need to find 3 numbers to equal that number, one being 25% higher than the remaining 2 which are equal. How do I calculate that and get the answer?