Question

Verify the following:

60 : 105 : : 84 : 147

Answer 1

60:105::84:147

`60/(105)=(60 ​÷ 15)/(105 ​÷ 15)=4/7`   (H.C.F. of 60 and 105 is 15.)

`84/147=(84 ​÷ 21)/(147 ​÷ 21)=4/7`   (H.C.F. of 84 and 147 is 21.)

Hence, 60:105::84:147 are in proportion.