Quantitative Aptitude - Arithmetic Ability Questions

A train runs at 80 kmph for the first 40 km and the next 30 km at 60 kmph. Find the average speed.

The areas of two similar triangles ΔXYZ and ΔPQR are 100 sq cms and 25 sq cms respectively. If PQ = 4 cm then what is the length of XY (in cm)?

Find the HCF & LCM of 16, 24.

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives .

Which of the following numbers is completely divisible by 99?

What is the value of {sin (90 – x) cos [π – (x – y)]} + {cos (90 – x) sin [π – (y – x)]}?

The slopes of two lines are 1 and √3. What is the angle between these two lines?

The reciprocals of the squares of the numbers 11⁄2 and 11⁄3 are in the ratio