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Neelam Singh

· started a discussion

· 1 Months ago

video lecture (Question:233112.0)

not understand

Question:
DIRECTIONS: Read the following data and answer the question that follow it.


The dimensions of the base of a house are 20 m × 15 m and its height is 3 m. It consists of two rooms whose floor dimensions are each 10 m × 5 m, a hall of 20 m × 5 m, a store rooms of 8 m × 5 m and a kitchen of 12 m × 5 m. All the outer walls of the house are painted at the cost of Rs. 210/sq m and all the inner walls are painted at the cost of Rs. 150/sq m.

What is the total cost of painting the outer surface of the four walls?
Options:
A) Rs. 34,200
B) Rs. 38,400
C) Rs. 44,100
D) Rs. 48,600
E) None of these
Solution:

Ans: (c) The total area of 4 walls = 2h (l + b)

The total cost of painting outer surface of the walls = 2(20 + 15) × 3 × 210

= 210 × 210 = Rs. 44,100

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
View the solution explanation after clicking on report. Team TR.
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