Find the average of first 97 natural numbers?
A polygon has 44 diagonals. How many sides does the polygon have?
Find the wrong number in the sequence:
196, 169, 144, 121, 100, 80, 64
The value of cos1° cos2° cos3° ............. cos177° cos178° cos179° is?
What is the sum of two consecutive even numbers, the difference of whose squares is 84?
The greatest number that, when divided by 1657 and 2037, leaves remainders of 6 and 5 respectively, is:
One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen, and King only)?
A and B are walking at 3 km/hr and 6 km/hr in the same direction. A train comes from behind and passes them in 8 and 10 seconds. What is the speed of the train (in km/h)?
Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is: