Quantitative Aptitude - Arithmetic Ability Questions

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

Which of the following points lies on the line 3x -­ 4y = ­-13?

A man has some hens and some cows. If the total number of heads of hens and cows together is 50 and the nunber of feet of hens and cows together is 142, then the number of cows is

The surface area of a sphere is 2464 cm². Find its diameter (in cm).

What is the altitude of an equilateral triangle whose side is 12√3 cm?

Which of the following is the CORRECT option for the triangles having sides in the ratio of 3:4:6?

Among four bags, average weight of last three bags is 18 kg and the average weight of first three bags is 19 kg. If the weight of last bag is 22 kg, then what is the weight (in kg) of first bag?

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the tower was 45 m high, how far away from the tower was the platform positioned?