Quantitative Aptitude - Arithmetic Ability Questions

A train left 1 hour later than the scheduled time but in order to reach its destination 200 km away in time, it had to increase its usual speed by 10 km/hr. What is the usual speed (in km/hr) of the train?

Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is

How long does a train, 75 m long, moving at 60 km/hr take to pass a certain telegraph post?

An alloy is made by mixing metal A costing Rs 2000/kg and metal B costing Rs 400/kg in the ratio A:B = 3:1. What is the cost (in Rs) of 8 kilograms of this alloy?

If Gadadhar's salary is 3/2 times of Haamid's and Sarvesh's is 4/3 times of Haamid's, what is the ratio of Gadadhar's salary to Sarvesh's?

At what rate of compound interest (in %) per annum will a sum of Rs. 15,000 become Rs. 18,150 in 2 years?

Select the odd number from the given alternatives.

What is the value of xy if x - y = 3 and x2+y2=15?