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Question

Tim is x years old now. John is 9 years older than Tim. In 4 years time, thevsum of their ages will be 91. How old is Tim now?

Please help on this queztion. Thanks

Answer

Now —
Tim : x
John : x + 9

In 4 years’ time,
x + x + 9 + 4 x 2 = 2x + 17 ——-91
x ——- (91 – 17)/2 = 37

Ans : 37 years old.

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Now                       4 yrs later

T –> x                    T –> x + 4

J –> x + 9               J –> x + 9 + 4

                                   = x + 13

 

x + 4 + x + 13 = 91

2x + 17 = 91

2x = 91-17

     =74

1x = 74÷2

     = 37

Tim’s age = 37 yrs old (ans)

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