Quantitative Aptitude - Arithmetic Ability Questions

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

What is the equation of a line of slope 1/3 and y-intercept 5?

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the car is:

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

A train leaves Kazipet at 5 a.m. and reaches Bangalore at 3 p.m. Another train leaves Bangalore at 7 a.m. and reaches Kazipet at 5 p.m. When do the two trains meet? Assume that the trains travels at equal uniform speeds.

The surface area of a sphere is 1386 cm2.  Find its diameter (in cm)

5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is

In the last financial year, a car company sold 41,800 cars . In this year, the target is to sell 51,300 cars . By what percent must the sale be increased ?