If the difference between two numbers is 7 and their product is 60, then one of the two numbers must be-

In Sajib's collection, Bangladeshi stamp is 3 times more than the stamps of other countries . Which of the fol...

Jamal's average score in 4 tests was 80 out of a possible 100 . If his scores in 2 of the tests were 65 and 70...

A student first reduced a number by 20 percent and then increased it again by 20 percent . If the difference b...

In a university, 80 percent of the students lived in hostel , and 60 percent of the hostel students are lucky...

If four triangles are constructed with sides of the length indicated below, which of the following triangles w...

A shirt marked TK. 12.50 is sold at TK. 10.00. The rate of discount on the marked price is -