Quantitative Aptitude - Arithmetic Ability Questions

35% of an alloy was silver. If in the quantity of alloy there was 119 g of silver, what was the quantity of the elements in the alloy?

If ax + by = 1 and bx + ay = 2aba2+b2 then x2+y2a2+b2 is equal to

The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is

If secA/√(sec2A ­- 1) = x, then value of x is

Find the value of  x3 - y3, if x - y = 4 and xy = 12.

A bag contains coins of denominations Rs.1, Rs.5 and Rs.10. Assuming there are equal number of Rs.1, Rs.5 and Rs.10, what will be the total number of coins in the bag be if the total money is Rs. 368?

If x=2+3,then the value of x2-x+1x2+x+1 is

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