Asif can do a job in 15 hours, and Russel can do the same job in 9 hours. If they start doing the job together at 6 a.m., and Russel stops working at 9 a.m., at what time will Asif finish the job?

A collection of books went on sale and two-third of them was sold for Tk 2.30 each. If none of the 36 remainin...

Rahim gave half of his stamps to Karim. Karim gave half of his stamps to Fatima. Fatima gave 1/4 of the stamps...

One baker can beke either 2 large cakes or 35 small cakes per hour. How many bakers are needed to bake 20 larg...

If is even, which of the following cannot be odd?

A worker is hired for 7 days, Each day, he is paid 10 taka more then what he is paid for the previous day of w...

M is a girl and has the same number of brothers as sisters. N is a boy and has twice as many sisters as brothe...