A vagabond runs out of cigarettes. he searches for the stubs, having learnt that 7 stubs can make a new cigarette, good enough to be smoked, he gathers 49 stubs, if he smokes 1 cigarette every three - quarters of an hour, how long will his supply last ? (1) 5.25 hr (2) 6 hr (3) 4.5 hr (4) 3 hr
Answers
Answered by
0
Firstly, superb question !!
7 stubs = 1 cigarette
49 stubs = 7 cigarettes
1 cigarette = 3/4hr
7 cigarettes = 3/4*7
=21/4 hrs
=315 min=1) 5hr 15 min or 5.25 hr
7 stubs = 1 cigarette
49 stubs = 7 cigarettes
1 cigarette = 3/4hr
7 cigarettes = 3/4*7
=21/4 hrs
=315 min=1) 5hr 15 min or 5.25 hr
Answered by
2
Answer:
6 hours
Step-by6 hours-step explanation:
a stub is equal to 1/7 of a cigarette and that only 6/7 of the cigarette is actually smoked.
So he can start by making 7 cigarettes from the 49 stubs.
After smoking those, he will have 7 more stubs left over to make another cigarette. And when that is done he will have one stub remaining.
Answer:
8 * 3/4 = 6 hours
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