Question

There are 10 marbles in a bag. 1/5 are red and the others are blue. What is the ratio to blue marbles.

Answer 1

Answer:

Ratio = 1 : 4

Step-by-step explanation:

Total marbles = 10

Given 1/5 is red, that is 1/5 of the total marbles are red

                                                            $\frac{1}{5} \ of \ 10 = \frac{1}{5} \times 10 = 2$

Therefore , 10 - 2 = 8 marbles are blue.

Ratio of red marbles to blue marbles

                                    $\frac{2}{8} = \frac{1}{4} = 1 : 4$