Read the following data and answer the question that follow it. The dimensions of the base of a house are 20m x 15m and its height is 3m. It consists of two rooms whose floor dimensions are each 10m x 5m, a hall of 20mx5m,a store rooms of 8m x 5m and a kitchen of 12m x 5m. All the outer walls of the house are painted at the cost of 210/sq m and all the inner walls are painted at the cost of 150/sq m.
143. What is the total cost
(a) 34,200
of painting the (b) 38,400
outer
surface of the (c) 44,100
four
walls? (d) *48,600
144. What is the ratio of the total cost of painting the outer surface of the walls to that of painting the inner
surface of the walls?
(a) 641 : 825
(b) 49: 85
(c) 231:435
(d) 9:225
145. If all the walls are painted with a single paint costing 150/sq m, Then how much money would the house
owner saved? (a) 12,600
(b) 15,400
(c) 18,200
(d)*21,800
146. If the inner surfaces of the walls of the hall are painted with paint costing 250/sq m, what will be the
increase in the total cost of painting? (b) 10,000
(a) €15,000
(c) 27,000
147. If two liters of paint is needed to paint an area of 5 sq m, (a) 144 liters (b) 152 liters
of the house completely at the same rate?
(c) 174 liters
USE FOR ROUGH WORK
(d) 45,000
how much paint is required to paint all the walls
(d) 288 liters
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Answer:
answer of the question 143 is 44100
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