Quantitative Aptitude - Arithmetic Ability Questions

10 is added to a certain number, the sum is multiplied by 7, the product is divided by 5 and 5 is subtracted from the quotient. The remainder left is half of 88. What is the number?

ΔABC is right angled at B. If m∠C = 60°, then find the value of (cotA - 1/2).

The mean score in a test of the 10 boys in a class was 15 while the overall mean of the 25 students in the class was 16.2. What was the mean score of the girls?

The simple and compound interest that can be earned in two years at the same rate is Rs 1,000 and Rs 1,040 respectively. What is the rate (percent per annum) of interest?

The average revenues of 13 consecutive years of a company is Rs 78 lakhs. If the average of first 7 years is Rs 73 lakhs and that of last 7 years is Rs 85 lakhs, what is the revenue for the 7th year?

For what value of X, 211X will be a perfect square?

What will be the quotient when 2143 is divided by 38?

In the following question, select the odd letter/letters from the given alternatives.