Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd word from the given alternatives.

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?

If R = 97 and S = 155.2, then S is how much percentage more than R?

Two trains are moving in the opposite directions at speed of 43 km/h and 51 km/h respectively. The time taken by the slower train to cross a man sitting in the faster train is 9 seconds. What is the length (in metres) of the slower train?

On selling 25 shirts, a retailer earns profit equal to the cost price of 8 shirts. What is the profit percentage?

O is the circumcentre of ΔABC. If AO = 8 cm, then the length of BO is

(242699 + 167109) ÷ (9946 –9446) = ?

Find measure of central angle of the sector whose perimeter is 25 cm and radius of the circle is 7 cm?