Question

15. A length of a rectangle exceeds the width by 15 cm. The perimeter of the rectangle is 150 cm. Find
the length and width of the rectangle.

1. The sum of three consecutive multiples of 5 is 240. Find these multiples.

2. Ayesha's flower garden is square in shape. If she enlarges it by increasing the width by
1 metre and the length by 3 metres, the area will be 28 sq metres more than the present
area. What is the length of the side?


ch:- linear equation​

Answer 1

Step-by-step explanation:

Let the breadth=x

the length =x+15

given perimeter=150

we know

Perimeter of rectangle=2(l+b)

150 = 2( x+ x+15)

75=2x+15

60=2x

30=x

therefore breadth =30 cm

length =30+15=45 cm

check

150=2(45+30)

150=2(75)

150=150

LHS=RHS

hence proved.

Answer 2

may it helps you all thank and byy