It takes Rumi 15 minutes to inspect a machine and Sami needs 18 minutes to inspect a machine. They both start inspecting machines separately at 9:00 AM. At certain points of time, both of them will finish inspecting a machine at the same time. When will this occur for the first time?

15% monthly salary increase resulted in a Tk. 14,400 per year increase in salary for an employee. What was his...

50 girls and 100 boys were invited to a party. If 30% of the girls and 75% of the boys attend the party, what...

If Tk. 30,000 was invested in the share market when the price per share was Tk. 50 and Tk. 45,000 was invested...

In a class of 120 students. 70 percent can speak Bengali and the rest can speak English only. If 25 percent of...

A train went 300 miles from City X to City Y at an average speed of 100 mph. At what speed did it travel on th...

If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+...