Question

Larry has 250 marbles, all red, white, and blue come in the ratio of 1 to 3 to 6 respectively. How many blue marbles does he have

Answer 1

150

Explanation:

Sum the parts of the ratio, 1 + 3 + 6 = 10 parts

Divide the number of marbles by 10 to find the value of one part of the ratio.

250 ÷ 10 = 25 ← value of 1 part of the ratio, thus

number of blue marbles = 6 × 25 = 150