Mensuration Test

Result

Mensuration Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

There is a square garden with a pathway around it. The length of a side of the square garden is 40 m and the path is 3 m in width. Find the area of the pathway.

A
230 m²

B
249 m²

C
250 m²

D
263 m²

Solution

Area of square = Length × Length

Side of square with pathway = 40 + 3 = 43 m

Side of square = 40 m

Area of square with sideway = 43 × 43 = 1849 m²

Area of square without pathway = 40 × 40 = 1600 m²

Area of pathway = 1849 - 1600 = 249 m²
Question 2
1 / -0

A person wants to paint a rectangular wall in his house. Length of the wall is 15 m and width is 8 m. Find the cost of painting the wall at the rate of Rs. 50 per sq.m.

A
Rs. 6,000

B
Rs. 6,012

C
Rs. 6,015

D
Rs. 6,020

Solution

Length = 15 m
Width = 8 m
Area of wall = 15 × 8 = 120 m²
Cost = 120 × 50 = Rs. 6,000
Question 3
1 / -0

There is a rectangular floor made from square tiles. Side of one tile is 2 m. Length of the floor is 12 m and width is 10 m. There were 10 tiles set up on the floor. How much area (in sq.m) is left in which tiles have yet to be set up?

A
20

B
40

C
80

D
100

Solution

Area of one tile = Side × Side
= 2 × 2 = 4 sq.m

Area covered by 10 tiles = 40 sq.m
Area of floor = Length × Breadth
= 12 × 10 = 120 sq.m

Area of floor left to set up = 120 - 40
= 80 sq.m
Question 4
1 / -0

There is a track in shape of a circle with radius of 20 m. How much distance is covered by Hari, if he runs 5 laps around it?

A
628 m

B
620 m

C
615 m

D
610 m

Solution

Radius = 20 m
Circumference = 2πr
= 2 × 3.14 × 20
= 125.6 m

Distance covered = 125.6 × 5
= 628 m
Question 5
1 / -0

Jaggi goes for a walk every Thursday. He walks 12 times around a rectangular park of length 40 m and breadth 15 m. How much distance does he cover?

A
1320 m

B
1040 m

C
950 m

D
860 m

Solution

Length = 40 m
Width = 15 m

Perimeter of park = 2(Length + Breadth)
= 2(40 + 15) = 110 m

When he walks around it 12 times, distance covered = 12 × 110
= 1320 m