Question

The length of a room is 20 meters breadth 15 meters and height 8 meters.
e cost of white washing it at the rate of 5 paise per sq
meter?
s it take
a 30. (b) 28 (c) 29 (d) None of these
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Answer 1

Answer:

None of these............

Answer 2

Answer:

none of these

Step-by-step explanation:

area of room =15 ×20×8

=2400

area of floor = 20×15=300

area to be whitewashed = 2400 -300

=2100

cost of whitewashing = 5 × 2100

=10500 paise

= 105 rs

So, d) none of these