Question

6. In a box, the ratio of red marbles to blue marbles is 7:4. Which of the
following could be the total number of marbles in the box?
(A) 18
(B) 19
(C) 21
(D) 22


answer the question​

Answer 1

Answer:

D) 22

Step-by-step explanation:

Let the no. of red marbles and blue marbles be 7x and 4x.

Their sum =  7x+4x = 11x.

Out of the option only 22 is divisible by 11 , so it is the correct option.