How many seconds will a 500-meter-long train take to cross a man walking with a speed of 3 km/hr. in the direction of the moving train if the speed of the train is 63 km/hr? 

Tapas works twice as fast as Mihir. If both of them together complete a work in 12 days, Tapas alone can complete it in 

A and B have money in the ratio 2: 1. If A gives Rs. 2 to B, The money will be in the ratio 1: 1. What were the initial amounts they had? 

The compound interest on a certain sum of money invested for 2 years at 5 % per annum is Rs. 328. The simple interest on the sum, at the same rate and for the same period will be 

The sum of the numbers of boys and girls in a school is 150. If the number of boys is x, the number of girls becomes x% of the total number of students. The number of boys is: 

A sells a bicycle to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays Rs. 225/- for it, the cost price of the bicycle for A is: 

What time is shown by the mirror if the real-time is 9 : 27 

In a row of girls, if Sujata is 10th from the left and Namrata is 9th from the right, interchange their positions, Sujata becomes 23rd from the left. How many girls are there in the row?