# We know the details about the mother and child but where's the father?

620 views

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.

Where's the father?

posted Feb 16, 2014

The mum is 21 years older than the child, so...
M = C + 21

In 6 years from now the mum will be 5 times as old as the child.
M + 6 = (C + 6) * 5

(C + 21)+ 6 = (C + 6) * 5
C + 27 = 5C + 30
-3 = 4C
C = -3/4

The child is 3 years 4 months old, i.e. it'll be born in 9 month's time.

Before 4 years and 1 month the father was probably nearby.

Adults will understand it better. :)

girls' parents are searching the father. :)

Similar Puzzles

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.

Where's the father?

"We were born on the same day of the same year," said Betsy.
"And we have the same mother and father," said Patsy.
"But we're not twins," said Betsy.
Can you explain?

A small town is visited by an ice-cream truck every day. On the first day of February, the truck visits as usual and 5 children, one from each of the first 5 houses on the street buys an ice cream that is of the different flavor from each other along with a completely different topping.

Go through the details below and find out which child lives in which house and bought which ice-cream flavor with which topping:

1. Jim lives between the child who bought the Raspberry topping and the child who bought mango ice cream.

2. Joyce, whose house has an even number, bought the cherry topping. Nancy does not live next to Joyce.

3. The blackcurrant ice cream had no topping.

4. The child who lives in house number 2 had the butterscotch ice cream. The child in house number 3 did not have chocolate ice cream.

5. Mike had banana ice cream. He hates banana cherry.

6. The child who had the cashew topping lives in house number 5. Dustin does not live in house number 4.

Please note that the odd numbered houses and the even numbered houses are located on the exactly opposite sides of the street.