Question : Aman wants to get his spherical overhead water tank having a diameter of 7 m, painted. If the cost of painting is Rs. 13 per square metre, find the cost of painting Aman's spherical overhead water tank.
(Use $\pi=\frac{22}{7}$)

Option 1: Rs. 1872

Option 2: Rs. 1984

Option 3: Rs. 2002

Option 4: Rs. 1926

Question : The dome of a residential tower is in the form of a hemisphere with a radius of 560 cm. Find the cost of painting it at the rate of Rs. 25 per m². (Take $\pi=\frac{22}{7}$)

Option 1: Rs. 4928

Option 2: Rs. 4982

Option 3: Rs. 4298

Option 4: Rs. 4289

Question : A hemispherical dome of a building needs to be painted. If the circumference of the base of the dome is 154 cm, then find the cost of painting it if the cost of painting is INR 4 per 100 cm². (Use$ ~\pi=\frac{22}{7}$).

Option 1: INR 150.92

Option 2: INR 150.66

Option 3: INR 105.29

Option 4: INR 105.66

Question : What is the value of $x$?
$\frac{3}{2}× \frac{7}{3} ÷ \frac{7}{6}+\frac{1}{4}=\frac{1}{x}$

Option 1: $\frac{7}{12}$

Option 2: $\frac{4}{13}$

Option 3: $\frac{13}{4}$

Option 4: $\frac{6}{7}$

Question : How many litres of water can a hemispherical tank of radius 2.1 m contain? (Take $\pi=\frac{22}{7}$)

Option 1: 18984

Option 2: 19324

Option 3: 18404

Option 4: 19404

Question : The radius of the base of a Conical tent is 12 m. The tent is 9 m high. Find the cost of canvas required to make the tent, if one square metre of canvas costs Rs. 120. (Take $\pi$ =3.14)

Option 1: Rs. 67,830

Option 2: Rs. 67,800

Option 3: Rs. 67,820

Option 4: Rs. 67,824