Remaining work = 1-8/15=7/15
So, B alone can do 7/15 th of work = 7 days
B alone can do the whole work = 15/7×7=15 days
Both together can do the whole work = 15/8×5=75/8 days
Total work = 75 unit
Efficiency of B = 75/15=5 unit/day
Efficiency of A = 8 –5 = 3 unit/hour
Required days = 75/3 = 25 days
English
35 Questions
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20 Mins English English35 Questions35 Marks20 Mins English English150 Questions150 Marks105 Mins EnglishIn an NSS college camp, there is food provision for 350 students for 40 days. If 50 more students join the camp, then for how many days will the provision last?
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