18. Rahul's father is 6 times as old as Rahul. Rahul's mother is 25 years old. The average age of this family of three is 20 years. How old is Rahul? *
1 point
15 years
10 years
7 years
5 years
Answers
Answered by
1
Answer:
Rahul's age will be 5 years.
I hope u r satisfied with this answer
Answered by
0
Answer:
option d is correct
Step-by-step explanation:
let the age of rahul be x
rahul's father age = 6x
rahul's mother age = 25
and their average age = 20
A/Q
x+6x+25/3 = 20
7x+25/3=20ₓ3
7x=60-25
7x=35
x=35/7
x=5
rahul age = 5
and his father age = 6ₓ5=30
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