There are four children in a family, two girls, Kate and sally, and two boys, tom and Ben.
tom is 2 years older than Ben.
The combined ages of the two boys is equal to the combined ages of the two girls.
Kate is twice as old as sally.
A year ago tom was twice as old as sally was then.
How old are the children now?

Bren=5 years

Tom=7yrs

Sally=4 yrs

Kate=8years

Step-by-step explanation:

-Let Bren's current age be  x, therefore Tom is x+2

-Let Sally's current age be y, therefore Kate is 2y

-Also, given that:

#We calculate the ages one year ago of Tom and Sally:

#Substitute for x in i;

no pictures of the graph

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.