Question

In 4 years, mary will be twice as old as she was last year. How old is mary now?

Answer 1

If mary is x years old, then she was x - 1 last year. Agree?

Answer 2

Agree

Answer 3

So, x + 4 = 2(x - 1)
Solve!

Answer 4

wa wa parth dimag chal raha hai :D

Answer 5

@baita

Answer 6

Lol was thank you

Answer 7

Let Mary's present age be 'x'
So her age an year ago = x-1
after four years, her age = x+4

So what would the equation for the relation between the two ages be?

Answer 8

twice as old.......as she was last year

Answer 9

Solve that^

Answer 10

6 years. Thanks @ParthKohli and @apoorvk

Answer 11

TEEHEE!

Answer 12

Righty-right!