A and b are 3 years 2 years old respectively. Their father is 40 years old. After how many years, father age would be the twice of combined age of a and b?
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Answer:
10 years
Step-by-step explanation:
Let after x years father age would be the twice of combined age of a and b?
After x years there ages will be
a: 3+x
b: 2+x
father: 40+x
as per question:
40+x=2(3+x+2+x)
40+x=2(5+2x)
40+x=10+4x
3x=30
x=10 years
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