"Five Years Ago, The Sum Of Ages Of Peter And Carlo Is Greater Than 42. Peters Age Is Three More Than Thrice Carlos Age. What Is Peters Possible Age I
Five years ago, the sum of ages of Peter and Carlo is greater than 42. Peters age is three more than thrice Carlos age. What is Peters possible age in 7 years?
Answer:
In 7 years, Peters age can be greater than or equal to 49.
Step-by-step explanation:
Five years ago, the sum of ages of Peter and Carlo is greater than 42. Peters age is three more than thrice Carlos age. What is Peters possible age in 7 years?
PAST(5 yrs. ago) PRESENT FUTURE (7 yrs.)
Peter x - 5 x = 3y + 3 x + 7
Carlo y - 5 y y + 7
x - 5 + y - 5 > 42
x + y > 52
x = 3y + 3
3y + 3 + y > 52
4y > 49
y > 12.25
round up
y ≥ 13
x ≥ 42
x + 7 ≥ 49
In 7 years, Peters age can be greater than or equal to 49.
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