Question

If p : q = 7: 3 and q : r = 2 : 5.What is the ratio of p : q : r?

Answer 1

Given that :

p : q = 7 : 3 and q : r = 2 : 5

To find :

p : q : r = ?

( We can use the Z-rule here to find the ratio )

Let p = 7, q1 = 3, q2 = 2 and r = 5

Then, according to Z-rule :

p × q2 : q2 × q1 : q1 × r

=> 7 × 2 : 2 × 3 : 3 × 5

=> 14 : 6 : 15

Hence, the ratio (p : q : r) will be 14 : 6 : 15

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Hope it helps !!