Question

The length of rectangular table cloth is 15 cm less than three times its breath.What is the length if the breath is y cm
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Answer 1

Answer:

Answer

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

Answer:

QUESTION

The length of rectangular table cloth is 15 cm less than three times its breath.What is the length if the breath is y cm.

ANSWER

Breadth is = x

Length is = x + 15

perimeter is = 2(l+b)

150 = 2(x+x+15)

75 = 2x + 15

60 = 2x

the breadth is

30 = x

I hope it helps you

#silent girl answer