Question

the sum of two number is 180. If one number exceeds the other by 20. find the number​

Answer 1

Step-by-step explanation:

let one no. be x

then the other no. is (x+20)

so x +x+70=180

2x+20=180

2x=180-20

2x=160

x=160/2

x=80

now, x=80

x+20=80+20 =100

Answer 2

let,

one number = x

according to the question,

the another becomes, 20 + x

⇒20 + x+ x = 180

⇒ 20 + 2x = 108

⇒2x = 180-20

⇒ 2x = 160

⇒ x = 80

then, the required no.s are,

20+ x = 20 + 80 = 100

x = 80

therefore, the numbers are 100 and 80.