SOLUTION: can you please help me to answer this question thank you Mang casar is 20 years older than his son. in 5 years he will be 3 times as old as his son. find their present age.

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Question 187895: can you please help me to answer this question thank you
Mang casar is 20 years older than his son. in 5 years he will be 3 times as old as his son. find their present age.
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!


Let x=son's age
And, x+20= Mang Casar's Age

Condition: Mang Casar's Age + 5 years = 3 times (son's age + 5 years)
x%2B20%2B5=3%28x%2B5%29----> Working Eqn
x%2B25=3x%2B15
25-15=3x-x
10=2x------->cross%2810%295%2Fcross%282%29=cross%282%29x%2Fcross%282%29
x=5yrs, Son's Age
5+20=25, Mang Casar's Age
Check, go back Working Eqn:
5%2B20%2B5=3%285%2B5%29
30=3%2810%29
30=30
Thank you,
Jojo