The ages of Rahul and harron are in the ratio of 5:7.four years later the sum of their ages will be 56 years. What are their present age?
Answers
Answer:
Lets take Rahul's age = 5x
Haroon's age = 7x
Four years later their age will be
Rahul = 5x + 4
Haroon = 7x + 4
The sum of their ages fours years later = 5x + 4 + 7x + 4 = 56
= 12x + 8 = 56
= 12x = 56 - 8
= 48
So , x = 48 / 12
= 4
Therefore ,
Rahul's age = 20 years
Haroon's age = 28 years
Answer:
Present ages:
Rahul = 5x = 5 × 4 = 20 years
Harron = 7x = 7 × 4 = 28 years
Step-by-step explanation:
Present ages:
Rahul = 5x
Harron = 7x
Four years later:
Rahul = 5x + 4
Harron = 7x + 4
Sum of their ages will be 56
5x + 4 + 7x + 4 = 56
12x + 8 = 56
12x = 56 - 8
12x = 48
x = 48/12
x = 4
Present ages:
Rahul = 5x = 5 × 4 = 20 years
Harron = 7x = 7 × 4 = 28 years
Check ⇒
Present ages:
Rahul = 5x = 5 × 4 = 20 years
Harron = 7x = 7 × 4 = 28 years
Four years later:
Rahul = 5x + 4 = 5 × 4 = 20 + 4 = 24 years
Harron = 7x + 4 = 7 × 4 = 28 + 4 = 32 years
Sum of their ages will be 56
24 + 32 = 56
56 = 56
L.H.S = R.H.S
Hence, verified.
The answer is correct.