Quantitative Aptitude - Arithmetic Ability Questions

Vikram and Vivek can finish a work in 50 days. They worked together for 20 days and then left. How much work has been done by them?

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

On Selling a toy at 20/31 of the marked price there is a loss of 20%. What will be the ratio of marked price and cost price of the toy?

X and Y are the mid points of sides AB and AC of a triangle ABC. If BC+XY=12 units, then BC-­XY is

If the radius of a circle is increased by 21%, then its area will increase by what percent?

To go a distance of 40 km upstream a rower takes 8 hours while it takes her only 5 hours to row the same distance downstream. What was the rower's speed in still water?

AB and AC are the two tangents to a circle whose radius is 6 cm. If ∠BAC = 60 deg, then what is the value (in cm) of √(AB2 + AC2)?

A car travels a certain distance at 70 km/h and comes back at 30 km/h. Find the average speed for total journey.