Quantitative Aptitude - Arithmetic Ability Questions

Findout the odd word/letters/number/number pair from the given alternatives.

The marked price of a shirt is twice of the cost price. To earn a gain of 25%, what should be the discount percentage?

A sum fetched a total simple interest of Rs 1200 at the rate of 7.5%/yr in 4 years. What is the sum (in Rs)?

Mahmood can do a piece of work in 40 hours. If he is joined by Janaki who is 50% more efficient, in what time will they together finish the work?

The least number to be added to 13851 to get a number which is divisible by 87 is

If x2+1x2 = 98, then x3+1x3 = ?

What is the value of 5.6x0.36+0.42x3.20.8 x 2.1 ?

If a2+b2c2 = b2+c2a2 = c2+a2b2 = 1k k≠0 then k =