Question

Q - 7

Solve the problems.

(2)

In a bag, number of one rupee coin is three times than two rupees coin. If there are only

Rs 150 in this bag, then find out the number of both the coins.

(3)

Perimeter of a rectangle is 24 meters. If length of a rectangle is 2 meters more than its

breadth, then find the breadth of a rectangle.​

Answer 1

Answer:

1. so you have asked that one rupee coin is three times of two rupee coin thus you have told that there are 150 one rupee coins then first you have to multiply it with 3 to find the total okay.

so 150×3=450

2.Let breadth of the rectangle be 'b' cm.

So length of the rectangle will be 'b+2' cm.

Now

Perimeter =48

2(l+b)=48

2(b+2+b)=48

2b+2=24

2b=22

b=11 cm

l=b+2=13 cm

Then,

Area of the rectangle =lb

=13×11

=143 cm

2