Sara has a son and a daughter – Billy and Jane. Billy is five times as old as Jane. Their mother is now three times as old as Billy, and in 2 years she will be eight times as old as Jane. Find the present age of the mother.

The present age of the mother is 30 years

Step-by-step explanation:

Let

x ---> Sara's age (the mother)

y ---> Billy's age (the son)

z ---> Jane's age (the daughter)

we know that

Billy is five times as old as Jane

so

----> equation A

Their mother is now three times as old as Billy

----> equation B

Their mother in 2 years she will be eight times as old as Jane

so

---> equation C

substitute equation A in equation B

----> equation D

substitute equation D in equation C

solve for z

Find the value of x

therefore

The present age of the mother is 30 years

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step-by-step explanation:

because i said it is

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.