Question

if a compound ratio is 7:5 & 8:x is 84:60 find x

Answer 1

Heya,

7:5::8:X = 84:60 (given)


=> 7×8÷5×X = 84÷60


=> 56/5X = 84/60 = 7/5


=> x = (56×5)÷(7×5)

=> x = 56/7

=> x = 8 ANSWER....

HOPE IT HELPS:-))

Answer 2

Here is your solution

$7:5::8:x = 84: \: 60 \\ \\ \frac{7 \times 8}{5} \times x = \frac{84}{60} \\ \\ x = \frac{56}{7} \\ \\ x = 8$
hope it helps you