Answer:
421160 Rupees
Step-by-step explanation:
Base area of cylinder = π × r^2
=> 616 = 22/7 × r^2
r^2 = (616 × 7) ÷ 22
= 4312 ÷ 22
= 196
Therefore r = √196
= 14 m
Total height of the tank = 20 m
Therefore height of cylinder
= 20 - 14
= 6 m
Volume of water tank
= Volume of cylinder + Volume of hemisphere
= π × r^2 × h + 2/3 × π × r^3
= 22/7 × 14 × 14 × 6 + 2/3 × 22/7 × 14
× 14 × 14
= 22/7 × 14 × 14 ( 6 + 2/3 × 14 )
= 616 ( 15.3 )
= 9424.8 m^3
= 9424800 l
( to convert m^3 to litre, multiply volume value by 1000 )
Total cost to fill water
= 9424800 × 45
= 424116000 paise
= 4241160 Rupees
Answer:
£396
Step-by-step explanation:
33 x 12= 396
12 months in a year
33 per month
The answer is 3.45 meters and the second ones gonna be .01
A = 1/2(b X h)
20.025 = 1/2(8.9 X u)
20.025*2/1= 1/2 * 2/1(8.9 x u)
40.05 =8.9u
40.05/8.9 = 8.9u/8.9
u = 4.50
Check
A = 1/2(b X h)
A = 1/2(8.9 X 4.5)
A = 1/2(40.05)
A = 20.025 in²