Question

if m:n = 9:7 and m= p + q and n= p-q then find the (p:q)-1
1) 11
2) 7
3) 5
4) 9​

Answer 1

Answer:

The correct answer is option B

Answer 2

Given; m:n = 9:7 and m= p + q and n= p-q

To Find; p:q -1

Solution; here m:n= 9:7

p+q/p-q= 9

7(p+q)=9(p-q)

7p+7q=9p-9q

16q=2p

p/q=1/8

Hence the ratio is 1:8