6, 9, 15, 21, 24, 28, 30
Find the odd one out
1, 4, 9, 16, 20, 36, 49
The difference between two numbers is 3. If the sum of their squares is 369, then the sum of the numbers is:
A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. The number of days taken by B to finish the work is?
A train 240 m long travels at 60 km/h. How long does it take the train to cross a 250 m long platform? (rounded to 1 decimal place)
The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is:
Two men start walking together at speeds of 3 km/hr and 5 km/hr. The man walking at 5 km/hr arrives 40 minutes earlier than the man walking at 3 km/hr. Find the distance they walked.
A invested Rs. 3,500 in a garment business and after 4 months, B joined the business. The total profit at the end of the year is Rs. 15,000, and A's profit share is Rs. 7,000. What is B's investment?
A takes 2 hours more than B to walk a distance of D km. If A doubles his speed, then he can complete the distance in 1 hour less than B. How much time does B require to walk the distance of D km?