Question

Find two no whose sum is 80and common differences is 40

Answer 1

Answer:

40 is the sum of two number

40+40=80

the difference between them is 40.

Answer 2

let the no. be x and y:-

ATQ,

x+y=80-(1)

x-y=40-(2)

adding eqn (1) and (2):-

2x=120

x=60

putting the value of x in eqn(1):-

60+y=80

y=80-60

y=20.

hence the two no. are

60 and 20

.

#avi