Quantitative Aptitude - Arithmetic Ability Questions

If 7 spiders make 7 webs in 7 days , then 1 spider will make 1 web in how many days ?

What is the reflection of the point (3, 2) in the line y = -2?

Two pipes fill a tank when working individually in 25 and 40 hours, respectively while a third pipe can drain the filled tank in 16 hours. If all the three pipes are turned on at the same time when the tank is empty, how long will it take to fill the tank completely ?

4 men can build a small house in 12 days. How long would it take for 6 men to build the same house?

Select the odd word/letters/number/number pair from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

A fraction, when taken away from 1/3 gives 1/12. The fraction is

If one of the zeros of the quadratic polynomial (k - 1)x2 + kx + 1 is -3 then the value of k = ?