The average of 6 numbers is 8.5. When one number is discarded the average of the remaining numbers becomes 7.2. What is the discarded number?

A worker union contract specifies a 6 percent salary increase plus a Tk 450 bonus foro each worker. For a work...

A business firm reduces the number of hours its emplyess work from 40 hours per week to 36 hours per week whil...

Rahim average 70 in his first m number of exams. After taking n more exams, he had an overall average of 75. I...

Last week , Sohan's hourly wage has been increased by 10percent. After this increase Sohan's total wage tk. 13...

Asif purchased a radio from a store and sold it to Rahim and made a profit of 20%. After few months, Rahim sol...

Two third of the members of a department are female. Twelve of the male faculty members are unmarried while 60...