Quantitative Aptitude - Arithmetic Ability Questions

X attempts 94 questions and gets 141 marks. If for every correct answer 4 marks is given, and for every wrong answer 1 mark is deducted, then the number of questions wrongly answered by X is __.

Find out the odd word/letters/number/number pair from the given alternatives.

What is the least number that when divided by 63 and 105 leaves remainder 4 in each case?

The compound interest on Rs. 1000 at 10% per annum for 3 years in (Rs.) is

If secA + tanA = a, then the value of cosA is

Select the odd letters from the given alternatives.

In the following pair of words, pick the odd pair which is odd from the others?

A student, by mistake, wrote 64 in place of 46 as a number at the time of finding the average of 10 given numbers & got the average as 50. The correct average of the numbers is