If x+y = z and x = y, then all of the following are true EXCEPT -

35% of Rashed's income is equal to 25% of Mithu's income. The ratio of their income is -

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...