Quantitative Aptitude - Arithmetic Ability Questions

Train A takes 1 hour more than train B to travel a distance of 720 km. Due to engine trouble speed of train B falls by a third, so it takes 3 hours more than Train A to complete the same journey? What is the speed of Train A (in km/hr)?

The cost price of 60 articles is same as the selling price of x articles. If there is a profit of 20%, then what is the value of x?

In the given figure, ABCDEF is a regular hexagon of side 12 cm. P, Q and R are the mid points of the sides AB, CD and EF respectively. What is the area (in sq.cm) of triangle PQR?

A student multiplied a number by 6/13 instead of 13/6. What is the percentage error in the calculation?

Find the least number to be added to 1739 so that it is exactly divisible by 11.

If in 3 years at simple interest the principal increases by 15%. What will be the approximate compound interest earned (in Rs lakhs) on Rs 15 lakhs in 3 years at the same rate?

In the given figure, O is centere of the circle. Circle has 3 tangents. If angle QPR = 45 deg, then what is the value (in deg) of angle QOR ?

Select the odd number from the given alternatives.