Quantitative Aptitude - Arithmetic Ability Questions

To get number 40, the number 56/9 should be multiplied with

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

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

What is the value of equation a3+b3+c3-3abc if a2+b2+c2=ab+bc+ca+4 and a+b+c = 4.

What is the value of [tan (90 – A) + cot (90 – A)]2/[2 sec2(90 – 2A)]?

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is