Quantitative Aptitude - Arithmetic Ability Questions

Square of (3x – 5xy) is

If a – b = 11 and ab = 24, then value of a2 + b2 is

After allowing a discount of 20% on Marked price Kishore makes a profit of 12%. What percentage is the Marked price above the Cost price?

If [2(4x/5 - 3/4)]/3 - 5/3 = -1/6, then the value of x is?

In a test, Charan secured 54 marks that was also equivalent to obtaining 72% marks. How many marks was the test out of?

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

What is the value of √121 + √12321 + √1234321 + √123454321?

The reciprocal of the sum of the reciprocals of 2/9 and 7/10 is