Q3 of 48 Page 101

If the compound ratio of 7:5 and 8:x is 84:60. Find x.

The compound ratio of 7:5 and 8:x = 84:60

Here from the given ratios, a = 7,b = 5,c = 8 and d = X.Then



If a:b and c:d are any ratios, then their compound ratio =


So, ac:bd


⇒


⇒


⇒


⇒


⇒


⇒


⇒ X = 8


∴ The Value of X is 8


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