Wednesday

March 4, 2015

March 4, 2015

Posted by **17halimk** on Thursday, November 10, 2011 at 8:51am.

- MAth grade 8 -
**Reiny**, Thursday, November 10, 2011 at 9:04amPeter's present age ---> x

Mary's present age ---> (2/3)x

Mary's age two yrs ago = (2/3)x - 2

Peter's age 5 yrs from now = x+5

"Two years ago mary's age was 1/2 of what peter's age will be in 5 years time." ---> (2/3)x - 2 = (1/2)(x + 5)

multiply by 6

4x - 12 = 3x + 15

x = 27

Peter is now 27 and Mary is now 18

check:

Mary's age 2 yrs ago = 16

Peter's age 5 yrs from now = 27+5 = 32

Is 16 one-half of 32 ??

Looks good

- MAth grade 8 -
**17halimk**, Thursday, November 10, 2011 at 9:21amthx

**Answer this Question**

**Related Questions**

Math - Mary's age is 2/3 that of peter's. Two years ago Mary's age was 1/2 of ...

Mathematics - Mary's age is 2/3 that of Peter's. Two years ago Mary's age was 1/...

math - mary's age is (2\3) that of peter's .two years ago mary's age was (1\2) ...

math - Mary's age is 2/3 that of peter's. two years ago mary's age was 1/2 of ...

algebra - if mary's age is x years.what will be the present age of mary's niece ...

maths - On 1 Jan 2007, Peter celebrates his 30 year old birthday. As a birth ...

Math - Mary is as old as Mario will be when Mary is twice as old as Mario was ...

Mathematics-please help quick!! - Harry is twice as old as Doyle. Doyle's age is...

math - Mary and Peter had a total of Rs 480.After Peter spent Rs 20, he had 3 ...

math - mary is x years old. it is her birthday today. her sister, sherry is 4 ...