Rahul's dad was seeing the plan of their new rectangular shaped house. The length of the house was thrice its breadth. The perimeter of the house is 120m. Find its length and breadth.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
9

Perimeter = 2l + 2b
Given, l = 3b
Therefore, perimeter = 2l + 2b = 2(3b) + 2b = 6b + 2b = 8b
Given that perimeter = 120m
8b=120m
b=15m
since l = 3b, l = 45m

Suggest Corrections

Similar questions

Rahul's dad was seeing the plan of their new house, the outline of the house is shown in the figure.

Rahul's Dad asked him to find the value of "x” if the perimeter of the outline is 101 cm.
What is the value of x?

Rahul's dad was seeing the plan for their new house, the outline of the house is shown in the figure,

Rahul's Dad asked him to find the value of " $x$ " if the perimeter of the outline is 101 m.

$x$ is equal to

400

x

4 x + 5 = 25

x - 2 \frac{1}{3} = 5 \frac{1}{2}

(7 x + 8) \div 7 = 8

Join BYJU'S Learning Program