Question

if a:b=5:7 find the value of (5a+3b) :(6a+15). ?​

Answer 1

Explanation:

Given :- a:b = 5:7 => a/b = 5/7 => a = 5 and b = 7

Now;

(5a+3b)/(6a+15)

= (5×5 + 3×7)/(6×5 + 15)

= (25 + 21)/(30 + 15)

= (46)/(45)

= 1.0222222.

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