Work done by p in one hour = 1/4
Work done by Q and R in one hour = 1/3
Work done by P and R in one hour = 1/2
Work done by R in one hour = 1/2- 1/4= 1/4
Work done by Q in one hour = 1/3- 1/4= 1/12
Therefore, time taken by Q to complete the work = 12 hours.
English
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 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?
If 1215 kg of rice is consumed by 189 girls for 8 days in a girl’ s hostel, then how much rice (in kg) is required for consumption by 252 girls for 10 days?
X alone can complete a work in 56 days and Y alone can do it in 72 days. both completed in:
Two pipes A and B can fill a tank in 28 hours and 21 hours, respectively. If both the pipes are opened simultaneously, then the time taken (in hours) to fill the tank is:
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