Logical Logic !

Algebra Level 1

When asked how old she was, Beth replied “In two years I will be twice as old as I was five years ago”. How old is she?

12 16 25 13

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Mohammad Arman Khaled by Mohammad Arman Khaled , 24, Kuwait

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5 solutions

Prabhat Routray
Oct 12, 2014

x+2 = 2*(x-5) => x+2 = 2x -10 => 2 +10 = 2x - x => 12 = x => x = 12 so age is 12

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Clavin Rali
Sep 15, 2014

It's easy,even fools can solve it .

let the girl's age be x . therefore the equation is

x + 2 = 2 ( x - 5 )
x+2 = 2x-10
2x-x = 10+2
x = 12


Not worth 100 points

2 Helpful 0 Interesting 0 Brilliant 0 Confused

it will be reduced shortly

math man - 6 years, 9 months ago

Now it is of 15 points

Manuj Dagar - 6 years, 8 months ago

nice answer.

Zaheer Ahmad - 6 years, 3 months ago

noww..it is 10.:D

Manasa Veena - 6 years, 8 months ago
Saya Suka
Apr 13, 2021

Answer
= Two less than twice of the sum of {two future years} and {five past years}
= 2(2 + 5) – 2
= 12

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Joshua R
Nov 21, 2014

Girl's age be x . therefore the equation is x + 2 = 2 ( x - 5 ) x+2 = 2x-10 2x-x = 10+2 x = 12

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Let her present age be y and ex-age be x... therefore, in two years means after two years she will be (y+2) years old. so, it is given that her ex-age was 5 years and she is twice of it + 2 years .. therefore... her present age , Y= (2x+2) = 2*5+2 = 12

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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