Question

if a:b=3:4 and x:y=5:7 , (3ax-by):(4by-7ax)=?​

Answer 1

Answer:

Given; a:b=3:4 and x:y=5:7.

Now;

(3ax-by):(4by-7ax)

=(3×3×5-4×7):(4×4×7-7×3×5)

=(45-28):(112-105)

=17:7 (answer)

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