Quantitative Aptitude - Arithmetic Ability Questions

If a:b = 5:8, find the value of (6a -­ 5b)/(a + 2b).

A wholesaler had 200 dozens of mangoes. He sold some of these mangoes at 20% profit and the rest at 10% profit, so that he made 13% profit on selling all the mangoes. How many mangoes (in dozens) did he sell at 20% profit?

Convert the 0.0068 in to vulgar fraction:

How many numbers are there between 1 to 200 which are divisible by 3 but not by 7?

If sec 300° = x, then value of x is

The base of a parallelogram is twice its height. If the area of the parallelogram is 338 sq.cm. Find its height?

Choose the most appropriate answer:A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9 Km/h and the speed of the current is 3 Km/h, the distance between A and B is

The average age of a class of 6 girls is x years. Four new girls having ages x – 2, x + 2, x + 4 and x + 6 joins the class. What is the new average age (in years) of the class?