Question : If the population of a town is 12,000 and the population increases at the rate of 10% per annum, then find the population after 3 years.

Option 1: 15,972

Option 2: 12,200

Option 3: 11,200

Option 4: 10,200

Question : The population of a town increases at the rate of 20% per annum. If the town's population will be 69,120 after 2 years, then what is the town's present population?

Option 1: 48,000

Option 2: 42,000

Option 3: 40,000

Option 4: 36,000

Question : At present, the number of trees in a village is 52,020. It increases annually at the rate of 2%. What was the number of trees in the village two years ago?

Option 1: 45,000

Option 2: 51,250

Option 3: 50,000

Option 4: 48,000

Question : At what rate of compound interest (compounding annually) per annum will a sum of Rs. 250000 becomes Rs. 275625 in 2 years?

Option 1: 8% per annum

Option 2: 3% per annum

Option 3: 10% per annum

Option 4: 5% per annum

Question : Rohan borrows a certain sum at simple interest. The rate of interest is 3 percent per annum for the first 3 years, 4 percent per annum for the next 5 years, and 6 percent per annum for the next 7 years. If he paid Rs. 2485 as interest, then what is the sum borrowed?

Option 1: Rs. 2500

Option 2: Rs. 3500

Option 3: Rs. 4000

Option 4: Rs. 3600