Quantitative Aptitude - Arithmetic Ability Questions

The profit (in Rs.) after selling an article for Rs.524 is the same as the loss (in Rs.) after selling it for Rs.452. The cost price of the article is:

The ratio of sand to gravel in a mixture is 17:8 while that between gravel and cement is 6:17. What is the ratio of sand to cement in the mixture?

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

If a3+1a3 = 2, then the value of a2+1a?

In the following question, select the related number from the given alternatives.

695 : 659 : : 839 : ?

What is the value of (cot60 + 1/√3) ?

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

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