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Question

A parallelogram-shaped mat has a height of 4 cm and a base of 3 cm. How much would it cost to cover a parallelogram-shaped hall with an area of 180 sq.cm with mats, if 1 mat costs ₹.7?


A

₹ 115

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B

₹. 105

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C

₹125

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D

₹ 110

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Solution

The correct option is B

₹. 105


Let n be the number of mats.

Base of mat = 3 cm

Height of mat = 4 cm

Area of one mat = base × height

Area of hall = Area of mat × number of mats

180=4×3×n

n=18012=15

Given that 1 mat costs = ₹. 7

Then 15 mats costs =7×15=. 105


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