Question

In Diagram 1, a water tank in the shape of a circular cylinder of radius 24 cm and height 125 cm is open at one end and is full
of water. In Diagram 2, a rectangular trough of length 150 cm and width 20 cm is shown.
(a) 1.2
Diagram 1
Diagram 2
On the basis of above information, answer the following questions :
(i) The volume, in litres, of water tank is :
(a) 94
(b) 188
(c) 226
(d) 306
(ii) The total area, in square metres, of the outside of the open tank, is :
(b) 1.6
(c) 1.8
(d) 2
(iii) If the trough is completely filled with 48000 cu cm of water from the tank, the depth of the trough is :
.(a) 16 cm
(b) 12 cm
(c) 8 cm
(d) 5 cm
(iv) After the trough had been filled, water started to leak from the tank. In 2 hours 30 minutes it was found that 20,000 cu cm
ran out the tank. The rate at which the level of water in the tank was falling is :
(a) 4.42 cm/h
(b) 5.1 cm/h
(c) 5.4 cm/h
(d) 6.2 cm/h​

Answer 1

Answer:

Diagram 1, a water tank in the shape of a circular cylinder of radius 24 cm and height 125 cm is open at one end and is full

of water. In Diagram 2, a rectangular trough of length 150 cm and width 20 cm is shown.

(a) 1.2

Diagram 1

Diagram 2

On the basis of above information, answer the following questions :

(i) The volume, in litres, of water tank is :

(a) 94

(b) 188

(c) 226

(d) 306

(ii) The total area, in square metres, of the outside of the open tank, is :

(b) 1.6

(c) 1.8

(d) 2

(iii) If the trough is completely filled with 48000 cu cm of water from the tank, the depth of the trough is :

.(a) 16 cm

(b) 12 cm

(c) 8 cm

(d) 5 cm

(iv) After the trough had been filled, water started to leak from the tank. In 2 hours 30 minutes it was found that 20,000 cu cm

ran out the tank. The rate at which the level of water in the tank was falling is :

(a) 4.42 cm/h

(b) 5.1 cm/h

(c) 5.4 cm/h

(d) 6.2 cm/h

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

आफ्टर पैट्रोल्हेड बिन्फील्ड मोटर स्टार्टर टू लीव फ्रॉम द टैंक इन 2 अवर्स 30 मिनिट्स फाउंडेड सेंटीमीटर एंड ऑफ द डेकोरेटेड विद लीव्स लेवल ऑफ द वाटर इन द टाइप ऑफ फॉलोइंग इन