Sir, the 22nd question
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volume of tank = 2/3 π *r*r*r = 2/3 *π * 1.5*1.5*1.5 = 49.5/7 m^3 =( 49.5/7)*1000 l = 49500/7 l
we want to empty half of it so 49500/7/2 = 24750 /7 l
25/7 l is emptied in 1 sec
1 l is emptied in 7/25 sec
24750/7 l is emptied in = (7/25 )*(24750/7)= 990 sec = 16.5 mins
we want to empty half of it so 49500/7/2 = 24750 /7 l
25/7 l is emptied in 1 sec
1 l is emptied in 7/25 sec
24750/7 l is emptied in = (7/25 )*(24750/7)= 990 sec = 16.5 mins
bharat9291:
got it?
yes sir
good night
so kind of you sir, you helped me a lot, thank you
good night
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