Question

3 years ago, the ratio of age of a and b is 3: 4. After 2 years, the sum of their ages is 45. Then find the present age of a?

Answer 1

HELLO MATE

YOUR ANSWER

AGE OF a (3 YEARS AGO)= 3x
AGE OF b (3 YEARS AGO)= 4x

PRESENT AGE OF a = 3x+3
PRESENT AGE OF b = 4x+3

AGE OF a AFTER TWO YEARS =3x+3+2
AGE OF b AFTER TWO YEARS =4x+3+2

NOW, ACCORDING TO THE QUESTION

(3x+3+2)+(4x+3+2)=45
3x+5+4x+5=45
7x+10=45
7x=45-10
7x=35
x=35/7
x=5

THEN

THE PRESENT AGE OF a = 3x+3
=3×5+3
=18




HOPE YOU UNDERSTAND




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