A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:

The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:

An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?

Eight men can complete a work in 36 days. If 4 men are withdrawn after 10 days, how many days would the remaining men require to complete the remaining work?

The value of a vehicle is Rs. 3,25,000. It was insured for 85% of its value. If, in an accident, the vehicle was totally damaged and the insurance company paid 90% of the insured value, what is the difference in the value of the vehicle and the insurance amount received?

When a certain number is divided by either 4 or 6, the remainder of 2 is left. Which of the following could that number be?

A certain amount of profit is distributed among two business partners A and B in the ratio 3 : 1. If B's investment of Rs. 4,000 is used for first six months only, what is A's investment if it is used for the whole year?

Which of the following numbers does not fit in the following series? 4, 8, 20, 48, 144, 288, 864