the length breadth and height of a room are 5 m , 4 m and 3 m respecti

1.	the length breadth and height of a room are 5 m , 4 m and 3 m respectively . find the cost of white washing the inner of the room and ceiling at the rate of rupees 50 per square meter.
Answer» Answer: 3,7 00 Step-by-step explanation: Given, L=5m b=4m h=3m T.S.A=2×(L.b+ b.h+h.l) =2×(5×4+4×3+3×5) =2×(20×12×15) =2×47 =94m² Again,area of the floor =l×b =5×4 =20m² Area of the FOUR WALLS and the CEILING =T.S.A-Area of the floor =94-20 =74m² cost of 1m²=RS 50 cost of 74m²=Rs 50×74 =Rs 3,700

the length breadth and height of a room are 5 m , 4 m and 3 m respectively . find the cost of white washing the inner of the room and ceiling at the rate of rupees 50 per square meter.

Answer»

Answer:

3,7 00

Step-by-step explanation:

Given,

L=5m

b=4m

h=3m

T.S.A=2×(L.b+ b.h+h.l)

=2×(5×4+4×3+3×5)

=2×(20×12×15)

=2×47

=94m²

Again,area of the floor =l×b

=5×4

=20m²

Area of the FOUR WALLS and the CEILING

=T.S.A-Area of the floor

=94-20

=74m²

cost of 1m²=RS 50

cost of 74m²=Rs 50×74

=Rs 3,700

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the length breadth and height of a room are 5 m , 4 m and 3 m respectively . find the cost of white washing the inner of the room and ceiling at the rate of rupees 50 per square meter. ​

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the length breadth and height of a room are 5 m , 4 m and 3 m respectively . find the cost of white washing the inner of the room and ceiling at the rate of rupees 50 per square meter.