Quantitative Aptitude - Arithmetic Ability Questions

P, Q and R are channels which discharge solutions A,B and C respectively in a tank. When the tank is empty and all the three channels are opened what is the proportion of the solution C in the tank after 3 minutes, if the channels P, Q and R can fill the tank from empty to full in 30 minutes and 20 minutes and 10 minutes respectively when they are opened one at a time.

The 3rd and 8th term of an arithmetic progression are -13 and 2 respectively. What is the 14th term?

Find out the odd word/letters/number/number pair from the given alternatives.

Find the odd word/letters/number from the given alternatives.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

What is the sum of the first 11 terms of an arithmetic progression if the first term is -31 and last term is 29?

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in x­axis to (­-4,2). The co-­ordinates of point R are

The distance between the points (11,­5) and (k,0) is 13. Find k.