Aptitude Test 2

Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is:

Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:

On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 7 balls. The cost price of a ball is:

The sum of ages of 5 children born at the intervals of 4 years each is 50 years. What is the age of the youngest child?

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 32, the how old is B?

The average of 30 numbers is zero. Of them, at the most, how many may be greater than zero?

A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?