A tank gets full in 1 hr. If the amount of water filled in the tank becomes twice every minute. In how much time the will get half filled? ""please answer fast. Its urgent.""
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59th minute.
Solution-1) Tank doubles every minute.
So, at 59th minute it was half full, and at 60th minute it doubles i.e gets full.
Solution-2)Let X = amount(volume) of water in the full tank (60 min)
X = 2^60
X = 1.153(10^18)
Half of this amt should make the tank half full:
0.5 * 1.153(10^18) = 5.765(10^17)
Let t = number of minutes
2^t = 5.765(10^17)
t*log(2) = log(5.765(10^17)
0.301t = 17.7608
t = 17.7608 / 0.301
= 59 (minutes)
Solution-1) Tank doubles every minute.
So, at 59th minute it was half full, and at 60th minute it doubles i.e gets full.
Solution-2)Let X = amount(volume) of water in the full tank (60 min)
X = 2^60
X = 1.153(10^18)
Half of this amt should make the tank half full:
0.5 * 1.153(10^18) = 5.765(10^17)
Let t = number of minutes
2^t = 5.765(10^17)
t*log(2) = log(5.765(10^17)
0.301t = 17.7608
t = 17.7608 / 0.301
= 59 (minutes)
MIKE111111:
thanks bro
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