Question

Jaswant being an interior designer is always fascinating about the historic sculptures. He

used to visit heritage buildings to know the minor finishing done by the early designers.

One day he visited an old building having a hall of dimensions. 15 m × 13 m × 7 m and

the ceiling of the hall is supported by 25 pillar of radius 50 cm and height 7 m each.

Based on the above information, answer the following questions:

(i) What is the curved surface area of each pillar?

(a) 18 m2

(b) 22 m2

(c) 36 m2

(d) 44 m2

(ii) What is the volume of the hall?

(a) 1365 m3

(b) 1468 m3

(c) 2197 m3

(d) 3375 m3

(iii) What is the volume of space occupied by all the pillars together?

(a) 117.5 m3

(b) 127.5 m3

(c) 137.5 m3

(d) 147.5 m3

(iv) If the cost of painting is ₹5 per m2

, then what is the total cost of painting all the

pillars?

(a) ₹2150
(b) ₹2250

(c) ₹2550
(d) ₹2750​

Answer 1

Answers:-





i) a
ii) c
iii) a

Answer 2

Answer:

i) a

ii) c

iii) a

hope it help you...