If a and b are both even numbers, which of the following COULD be odd integer?

A number consists of two digits. If the digits interchange places and the new number is added to the original...

A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the bo...

A bank offers 5% compound interest calculated on half-yearly basis. A customer deposits Tk. 1600 each on 1st J...

Two number M and N are such that the sum of 5% of M and 4% of N is two-third of the sum of 6% of M and 8% of N...

Ranu and Rabu appeared at an examination. Rabu secured 9 marks more than Ranu and her marks was 56% of the sum...

In a class, 20% of the students are below 20 years of age. The number of students above 20 years of age is two...