a 250-litre tank empties in 2 hours 30 min due to a leakage. how long will it take for 9/10 of the tank to drain?
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Answered by
64
Do 9/10 of time
2 hr 30mIn. is 150 min
so 150 × 9/10 = 135 min. which is 2 hr 15 min.
2 hr 30mIn. is 150 min
so 150 × 9/10 = 135 min. which is 2 hr 15 min.
mansi102:
It hepled me a lot .... thank u very much
Answered by
35
2h 30m=5/2h
If 250l=5/2h,then
1litre=5/2×1/250=1/100
9/10×250=225 litre
time taken=225×1/100=2.25h=9/4h=2h 15m
Hope it was helpful
If 250l=5/2h,then
1litre=5/2×1/250=1/100
9/10×250=225 litre
time taken=225×1/100=2.25h=9/4h=2h 15m
Hope it was helpful
2.25h is 2 hr and 25/100 hour so 25/100 is 1/4 and minutes are 60× 1/4 = 15 min. So 2hr 15 min.
ya
i really helped me a lot....
thanks
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