In a box, the ratio of red marbles to blue marbles is 7:4. Which of th

1.	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» (D) 22 From the question it is given that, the ratio of red marbles to blue marbles is 7:4. Now, let us assume the common factor of 7 and 4 be x. So, the total number of marbles in the box = 7x + 4x = 11x Hence number of marbles in the box is a multiple of 11. Therefore, 11 × 2 = 22

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»

(D) 22

From the question it is given that, the ratio of red marbles to blue marbles is 7:4.

Now, let us assume the common factor of 7 and 4 be x.

So, the total number of marbles in the box = 7x + 4x = 11x

Hence number of marbles in the box is a multiple of 11.

Therefore, 11 × 2 = 22