Question

Two adjacent angles add up to 145° .If larger angle is 25° more than the smaller angle,find the angle .

Answer 1

let smaller angle be y and larger angle be x
ATQ, x=y+25

x+y=145
y+25+y=145
2y=120
y=60
so x=85

Answer 2

Let the angles be x and y.
X+y=145°
X+25=y
x-y=-25
Subtract both the eqn.
2y=145+25
2y=170
y=170/2
y=85.x=60°.
The angles are 85° and 60°.