11 Plus Exams Forum

If Sarah's bro is 2yrs younger than her, and Sarah's sister is 5 yrs younger than her.

Total age is 87

What is each persons age?

rashdah wrote:If Sarah's bro is 2yrs younger than her, and Sarah's sister is 5 yrs younger than her.

Total age is 87

What is each persons age?

sister 26 1/3
brother 29 1/3
sarah 31 1/3

add on 7 years to the total age (2 for the brother and 5 for the sister) giving 94 and then divide by 3 to get Sarah's age (31 1/3) - then subtract 2 and 5 respectively from that to get the ages of the brother and sister.

These type of questions usually have answers in whole numbers though - is the question typed correctly? It isn't supposed to be "If Sarah's bro is 2yrs younger than her, and Sarah's sister is 5 yrs younger than him" is it? Or total age is 89 perhaps?

Oh please, if you're going to ask for help, why don't you type out the question properly as it was initially written? Why re-word it they way you have done? The person who replies is going to be spending longer than you did typing out the question badly.