Question

What number has to be added to the terms of 3 : 5 to make the ratio 5 : 6?
1) 13 2) 7 3) 12 4) 6

Answer 1

Let the number added to the resulting ratio be x. Therefore, (3 + x) / (5 + x) = 5/6. On solving, we get, (3 + x) 6 = 5 (5 + x).

This implies, 18 + 6x = 25 + 5x, => 6x – 5x = 25 – 18. Therefore, number to be added = x = 7.

Answer 2

Answer:

2) 7

Step-by-step explanation:

Let the no. be x

= 3+x 5

——– = —

5+x 6

= (3x + x) 6 = 5 (5 + x)

= 18 +6x = 25 + 5x

= 6x - 5x = 25 - 18

= x = 7

HOPE THIS HELPS