The Ratio Of The Present Ages Of A And B 9: 5. Five Years Earlier The

1.	The Ratio Of The Present Ages Of A And B 9: 5. Five Years Earlier The Ratio Of Their Was 2 : 1. What Is The Average Of Their Present Ages?
Answer» A/B=9/5; i.e. 5a = 9B.......... (i) A-5/B-5 = 2/1; i.e. A-5 = 2B .........10 ∴A - 2B = -5................... (II) From equation (i) and (ii), A = 45, B = 25 ∴ AVERAGE =45+25/2 = 70/2 = 35. A/b=9/5; i.e. 5a = 9B.......... (i) A-5/B-5 = 2/1; i.e. A-5 = 2B .........10 ∴A - 2B = -5................... (ii) From equation (i) and (ii), A = 45, B = 25 ∴ Average =45+25/2 = 70/2 = 35.

The Ratio Of The Present Ages Of A And B 9: 5. Five Years Earlier The Ratio Of Their Was 2 : 1. What Is The Average Of Their Present Ages?

Answer»

A/B=9/5; i.e. 5a = 9B.......... (i)

A-5/B-5 = 2/1; i.e. A-5 = 2B .........10

∴A - 2B = -5................... (II)

From equation (i) and (ii), A = 45, B = 25

∴ AVERAGE =45+25/2 = 70/2 = 35.

A/b=9/5; i.e. 5a = 9B.......... (i)

A-5/B-5 = 2/1; i.e. A-5 = 2B .........10

∴A - 2B = -5................... (ii)

From equation (i) and (ii), A = 45, B = 25

∴ Average =45+25/2 = 70/2 = 35.