Question

If (3a +56) :(3a-56) = 5.1 then a:b=?​

Answer 1

Step-by-step explanation:

3a+5b 5

_____ = ___

3a -5b 1

apply componendo dividendo method

3a+5b+(3a -5b) 5+1 6 3

____________ = ___ = __ = __

3a+5b-(3a- 5b) 5-1 4 2

3a/5b = 3/2

a/b = 3/2 × 5/3 = 5/2

a:b = 5:2