Question

U JULIULIOUJ
If the side of a square is increased by 25%, then its area is increased by
a) 56.25
b) 50
c) 125
d) 156.25
is done
When we apply force on any object, it changes its position, we say that
a) Nothing
b) Work
c) Effort
d) None of these​

Answer 1

area of square=l²

new area of square=(125/100 l)²

=25/16 l²

percent=25/16 l²/l² ×100

= 156.25

2 nd ans is b) work