The compound ratio of 5 : 7 and inverse 2 : 9 is A) 45 : 14 B) 10 :

1.	The compound ratio of 5 : 7 and inverse 2 : 9 is A) 45 : 14 B) 10 : 63 C) 63 : 10 D) 14 : 45
Answer» Correct option is A) 45 : 14 Correct option is (A) 45 : 14 Inverse ratio of 2 : 9 is 9 : 2. \(\therefore\) The compound ratio of 5 : 7 and inverse 2 : 9 is equal to the compound ratio of 5 : 7 and 9 : 2. \(=\frac57\times\frac92=\frac{45}{14}\) Thus, the compound ratio of 5 : 7 and inverse 2 : 9 is 45 : 14.

The compound ratio of 5 : 7 and inverse 2 : 9 is A) 45 : 14 B) 10 : 63 C) 63 : 10 D) 14 : 45

Answer»

Correct option is A) 45 : 14

Correct option is (A) 45 : 14

Inverse ratio of 2 : 9 is 9 : 2.

\(\therefore\) The compound ratio of 5 : 7 and inverse 2 : 9 is equal to the compound ratio of 5 : 7 and 9 : 2.

\(=\frac57\times\frac92=\frac{45}{14}\)

Thus, the compound ratio of 5 : 7 and inverse 2 : 9 is 45 : 14.