Mensuration Practice Test 7

Question : 38 of 40

Marks: +1, -0

A playground is in the shape of a rectangle. A sum of Rs 1,000 was spent to make the ground usable at the rate of 25 paise per sq. m. The breadth of the ground is 50 m. If the length of the ground is increased by 20 m, what will be the expenditure in rupees at the same rate per sq. m?

1250
1000
1500
2250

Validate

Solution:

Money spent to make the ground = Rs 1,000 = 1,00,000 paise
Area of the ground =

{100000}/{25}

= 4000

m^2

Area of the ground = l × b
= x × 50 = 4,000
x =

{4000}/{50}

x = 80 m.
Length of the ground increased = 80 + 20 = 100 m
Area of the ground = l × b
= 100 × 50 = 5,000

m^2

Expenditure in rupees at the same rate
= 5000 ×

{25}/{1000}

= Rs 1250

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