Professor Valdiya was awarded Padma Shri (2007) and Padma Bhushan award in 2015.
Numan does half as much work as Gagan in four-fifth of the time. If together they take 16 days to complete a work, how much time shall Gagan take to do it?
A mango kept in a basket doubles every one minute. If the basket gets completely filled by mangoes in 30 min then in how many minutes half of the basket...
A thief steals a bike at 12:30p.m. and drives it at 48km/h. But the theft is discovered after half an hour. The bike owner starts to chase him on anoth...
A’ and ‘B’ together can complete a work in 8 days, while ‘B’ and ‘C’ together can complete the work in 12 days...
P and Q can complete a project in 15 days and 10 days, respectively. They started doing the work together, but after 2 days, Q had to leave and P alone...
A and B can complete a task in 25 days. B alone can complete 33 1/3 % of the same task in 15 days. In how many days can A alone complete 4/15th
A man on the top of a tower, standing on the sea-shore, finds that a boat coming towards him takes 10 minutes for the angle of depression to change fro...
A and B can do job in 10 days. B and C can do same job in 12 days. A, B and C together can do same job in 8 days. In how many days A and C together can ...
A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. If the son works alone he can do...
Working together A and B can do a job in 40 days, B and C in 36 days and all three together in 24 days. In how many days can B alone do the job?
