Question

Math Word Problem (Age)​

Answer 1

Step-by-step explanation:

The ages of 2 sisters, Sana and Sara add up to 20. The difference between their ages is 8 years

Answer 2

Answer:

17 year and 7 year

Step-by-step explanation:

Given that

Addition of age of two sisters is 24.

Difference between their ages is 10yr.

To find

Ages

Solution

Let

x and y are the ages of sana and sara respectively then as per given condition

$x + y = 24$

and

$x - y = 10$

we get two equations hence first add this two equation we get

$x + y = 24 \\ + x - y = 10$

by adding we get

$2x = 34$

$x = 17$

put the value of x in equation one

hence

$17 + y = 24$

$y = 24 - 17$

by subtraction we get

$y = 7$

hence ages of sana and sara are 17year and 7year respectively.