Question

Guanzhou, a city in China has a giant cylindrical building with a cylindrical hole through its

middle. The building is 138 m high and with a hole of diameter 46 m right through its

middle side width of building is 28m.

Answer the following:

i) The total surface area of building is

a) 1677.29 m2

b) 16770.29 m2

c) 578.29 m2

d) 16192 m2
ii) Volume of building is

a) 3724160 m3

b) 3072416 m3

c) 3724.16 m3

d) 372416 m3

iii) Cost of painting the front and back of building @ À 3500 per sq. m is ?

a) À 93104 b) À 931040

c) À 93104000 d) À 53104000

iv) If using mega engineering technique the entire building is rolled to new location by

giving 2 complete turns, then the distance the building covers on ground is

a) 850 m b) 867.4 m

c) 1867 m d) 1567.43 m

v) The volume of air trapped right in the middle of the building is

a) 46552 m3

b) 4655 m3

c) 93104 m3

d) 23276 m3​

Answer 1

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