WAEC - Mathematics (2015 - No. 28)
Tom will be 25 years old in n years' time. If he is 5 years younger than Bade, find Bade's present age.
(30 - n)years
(20 - n)years
(25 - n)years
(30 + n)years
Explanation
Let Tom's present age be x.
Then x = 25 - n
If Tom is 5 years younger than Bade, then Bade's present age is x + 5 = 25 - n + 5
= (30 - n)
Then x = 25 - n
If Tom is 5 years younger than Bade, then Bade's present age is x + 5 = 25 - n + 5
= (30 - n)
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