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A housing society constructed 197 houses. If the cost of construction for each house is Rs 450000, what is the total cost for all the houses? - Mathematics

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Question

A housing society constructed 197 houses. If the cost of construction for each house is Rs 450000, what is the total cost for all the houses?

Sum

Solution

Cost of construction of 1 house = Rs 450000
Cost of construction of 197 such houses = 197 × 450000
= 450000 × (200 − 3)
= 450000 × 200 − 450000 × 3 [Using distributive property of multiplication over subtraction]
= 90000000 − 1350000
= 88650000 
∴ The total cost of construction of 197 houses is Rs 8,86,50,000.

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Chapter 3: Whole Numbers - Exercise 3D [Page 54]

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RS Aggarwal Mathematics [English] Class 6
Chapter 3 Whole Numbers
Exercise 3D | Q 11 | Page 54

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