A money lender lent out ₹40,000 in two parts, one at 7% p.a. and the other at 6% p.a.. If the total annual simple interest on the amount is ₹2,550, what is the amount of money lent at 7%?
Two sections A and B of class VIII consist of 42 and 38 students, respectively. If the average marks of section A is 400 and that of section B is 320, find the average marks of the whole class.
Study the below graph carefully and answer the question.
What is the percentage increase in the price of Diesel from April to July (rounded off to one digit after decimal)?
By selling an article for ₹19.5, a dealer makes a profit of 25%. By how much should he increase his selling price (in ₹) so as to make a profit of 50%?
A thief is noticed by a policeman from a distance of 400 m. The thief starts running at a speed of 8 km/h and the policeman chases him at a speed of 9 km/h. What is the distance between them after 18 minutes?
A thief seeing a policeman from a distance of 525 metres started running at a speed of 18 km/h. The policeman chased him immediately with a speed of 27 km/h. What is twice the distance covered by the policeman to catch the thief?
In Class I there are 12 students of average age 20 years, and in Class II there are 16 students of average age 23 years. What is the average age (approximately) of both the classes?
