Quantitative Aptitude - Arithmetic Ability Questions

In a class of 50 students there are 27 girls. The average weight of these girls is 45 kg and average weight of the full class is 49.6 kgs. What is the average weight of the boys of the class?

What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?

The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?

If 7/8th of 5/4th of a number is 315, then 5/9th of that number is _____

If a4 + 1 = [a2 /b2 ] (4b2 – b4 – 1), then what is the value of a4 + b4?

What is the value of 2sec2A?

If (7x -­ 13) ­ (12x + 3) = 14, then the value of x is ______ .

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