Question

In a box the ratio of red marbles to blue marbles is 7:4 which could be the total number of marbles in the box
1)18
2)19
3)21
4)22​

Answer 1

Step-by-step explanation:

ans 4)22

hope it will help you

Answer 2

Answer:

$\frac{7}{4} \times \frac{2}{2} = \frac{14}{8}$

Therefore the total number of marbles is 14 + 8 = 22