Question

please solve these questions 31, 32

Answer 1

31 (c) let present age of shivam be x
then present age of rahul =3x
after eight years ...

3x+8=2(x+8)+1
3x-2x=16+1-8
x=8+1
x=9...

age of shivam = 9
then present age of rahul = 3x=27 years...
age of rahul before 8 years = 27- 8= 19 years..



32 (b) let present age of ravi be x
then age of kishan =69-x

x-8=2(69-x-8)-4..
x-8=2(61-x)-4
x-8+4=122-2x
x+2x= 122+4
3x=126
x=126/3
x= 42


present age of ravi = 42
present age of kishan = 69-42
=27 years..

difference between them = 42-27
=15 years ..


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