Compound intrest and population growth Mathematics Olympiad (MCQ) question

 

Compound intrest and population growth  Mathematics Olympiad (MCQ)  question 

   ^_ What is the simple interest on Rs. 500 at the rate of 12% for 2 years?

     a) Rs. 100                        b) Rs. 120                     c) Rs. 130                   d) Rs. 140

 

     7. If the simple interest on Rs. 5000 at the rate of 20% for 1 year is Rs. 1000 then find the compound amount.

     a) Rs. 4000                b) Rs. 4500                         c) Rs. 6000                 d) Rs. 5500

 

   8. Find the compound amount compounded annually on Rs. 15000 for 1 year at 10% per annum.

     a) Rs. 16000                b) Rs. 16500              c) Rs. 16800          d) Rs. 15500

 

   9. What will be the compound interest on Rs. 2500 at the rate of 20% for 2 years ?

     a) Rs. 900                   b) Rs. 1000               c) Rs. 1050              d) Rs. 1100

 

   10 The difference between simple and compound interest compounded annually in a certain sum of money for 2 years at 4% per annum is Re. 1. The sum is

     a) Rs. 625                   b) Rs. 630                 c) Rs. 640                d) No any one

 

11.Find the compound interest annualy on Rs. 7500 at the rate of 4% for 2 years.

    a) Rs. 610                  b) Rs. 612                c) Rs. 614                   d) Rs. 616

 

   12 What sum of money lent out at compound interest will amount to Rs. 968 in 2 years at 10% per annum interest being charged annualy?

   a) Rs. 780                  b) Rs. 800                c) Rs. 825                    d) Rs. 900

 

13.Calculate the compound amount compounded annually at the rate of 4%, 5% and 8% during the first, second and third year respectively.

   a) Rs. 29,844              b) Rs. 24,984               c) Rs. 29,848            d) Rs. 29,448

 

 14 At what rate percent per annum will a sum of Rs. 4,000 yield compound interest of Rs. 410 in 2 years.

   a) 3%                          b) 6%                          c) 5%                        d) 4%

 

15.The difference between the compound interest and simple interest on a certain sum at 10% per annum for 2 years is Rs. 60. Find the sum.

   a) Rs. 6,000               b) Rs. 6,200                c) Rs. 6,400               d) Rs. 7,000

POPULATION GROWTH MCQ QUESTION 

3.A watch of Rs. 2500 is depreciated in a year by 15%, then what is the price of watch after one year ?

a) Rs. 2125               b) Rs. 2100                c) Rs. 2000               d) Rs. 2025

4.A bicycle of Rs. 3000 is deprecated in a year by 33% , find the amount of depreciation.

a) Rs. 900                b) Rs. 930                   c) Rs. 960                 d) Rs. 990

5.The present population of a village is 30,000. If it is increase at the rate of 10% per annum, then what will be the population after 2 years?

a) 35,300                 b) 35,900                     c) 36,300                  d) 36,500

6.The present population of a village is 66,550. If it is increase at the rate of 10% per annum, then what was the population  of the town 3 years ago?

a) 49,000                 b) 50,000                     c) 50,500                  d) 55,000

7.The  population of a village increase from 10,000 to 11,000 in one year, find out the population increase rate.

a) 10%                    b) 12%                         c) 15%                      d) 8%

8.The  population of a village was 7,200. If 500 of the  population migrated in and 200 died due to the earthquake within a year, what would be the population of the village after a year?

a) 7100                   b) 7200                        c) 7400                      d) 7500

9.At what rate percent population growth will population 700 to 847 in 2 years ?

a) 8%                     b) 10%                         c) 12%                      d) 15%

10.In what time the population increase from 60,000 to 79,860 at the rate of 10%  population growth ?

a) 1 year                b) 2 years                     c) 3 years                  d) 4 years

   

 Answer key