Jill is now 20 years old, and her brother Gary is now 14 years old. Ho

Question

Jill is now 20 years old, and her brother Gary is now 14 years old. How many years ago was Jill’s age three times Gary’s age at that time?

(A) 3
(B) 8
(C) 9
(D) 10
(E) 11

rajatchopra1994 · Answer

Explanation:

Jill's age then = x
Gary age then = y
x=3y---1 
Checking Options,
Eleven years ago, Jill will be 9, Gary will be 3. it will satisfies eqn 1

IMO-E

CrackverbalGMAT · Answer

Let the number of years = x

Jills age x years ago = 20 - x

Gary's age x years ago = 14 - x

x years ago, Jills age was 3 times Gary's age

20 - x = 3(14 - x)

20 - x = 42 - 3x

2x = 22

x = 11

Option E

Arun Kumar

ashwink · Answer

Let Jill's current age be J & Gary's current age be G.
Given, J = 20 & G = 14
Let x be the number of years that we need to find. As per statement, we need to figure out:

20 - x = 3(14 - x)
20 - x = 42 - 3x 
2x = 22, hence x=11

This gives us option  E .

LSwetha · Answer

Let jill be x

J x 
G x-6

WHEN WILL X BE 3 TIMES AS MUCH AS X-6

x= 3(x-6)
x = 9

That was 11 years k

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Marcost · Answer

J-X = 3 (G-X)
J=20
G= 14

20-X = 42-3X
2X = 22
X= 11

Jill is now 20 years old, and her brother Gary is now 14 years old. Ho

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Jill is now 20 years old, and her brother Gary is now 14 years old. Ho

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