Quantitative Aptitude - Arithmetic Ability Questions

On dividing 8a2b2c2 by 4a2, we get

Which of the following is not a quadratic equation?

Two whole numbers are such that the square of first number exceeds the second by 112 and the ratio of the numbers is 4:3. What is thevalue of smaller number?

The selling price of an article is 8/5th of its cost price. Then the gain percentage is

Findout the odd word/letters/number/number pair from the given alternatives.
7 : 50 : : 9 : ?

Some carpenters promised to do a job in 15 days but 3 of them were absent and remaining did the job in 20 days. What was the original number of carpenters?

A thief is stopped by a policeman from a distance of 450 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 7 km/h and that of policeman as 12 km/h, how far the thief would have run, before he is over­ taken?

A map is drawn at a scale of 2 mm for 500 kms. Two places are marked at the distance of 3.6 mm; calculate the distance (in kms) between these two places?