Question

Amna is 2 years older than Saira and Nida
is 6 years younger
than Saira. If the sum
of their ages is 20. Find their respective ages.​

Answer 1

Answer:

saira=x

Aman=x+2

Nida=x-6

x+2+6-x=20

x=12

saira=12

Aman=12+2

=14

Nida=12-6

=6

Answer 2

Answer:

let saira be x years old

then, amna = ( 2 + x ) -------------- (1)

Nida = ( x - 6 ) ---------------(2)

as per question

sum of amna and nida ages is 20

( 2 + x ) + ( x - 6 ) = 20

2 + x + x - 6 = 20

2x - 4 = 20

2x = 20 + 4

x = 24 ÷ 2

x = 12

Saira age = x = 12 years old

Amna age = 2 + x = 2 + 12 = 14 years old

( from eq. 1 )

Nida age = x - 6 = 12 - 6 = 6 years old

( from eq. 2 )