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C.I. Formula Applications MCQ Questions & Answers

C.I. Formula Applications MCQs : This section focuses on the "C.I. Formula Applications". These Multiple Choice Questions (MCQs) should be practiced to improve the C.I. Formula Applications skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

900 workers were employed to construct a dam in four years. At the end of first year, 5% workers were retrenched. At the end of the second year 2% of the workers were retrenched. To complete the construction in time, the number of workers were increased to 10% at the end of third year. How many workers were working at the end of fourth year.

A. 945
B. 1000
C. 921
D. 989

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Question 2

A company increased the production of cars from 15625 in 2002 to 27000 in 2005. Find the annual rate of growth of production of the cars.

A. 15%
B. 2%
C. 10%
D. 20%

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Question 3

A new two-wheeler costs Rs. 90000. Its price depreciates at the rate of 10% a year during first two years and the rate of 25% a year thereafter. Find the cost of the two-wheeler after 3 years.

A. 55000
B. 546750
C. 50460
D. 540000

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Question 4

An apartment of two floors is constructed at the cost of Rs. 5000000. It is depreciating at the rate of 20% per annum. Find its value 3 years after construction.

A. 2400000
B. 2460000
C. 2500000
D. 2560000

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Question 5

Fe-57 decays at the constant rate in such a way that it reduces to 50% in 5568 years. Find the age of an old rod which the iron (Fe) is only 12.5% of the original.

A. 16700
B. 16705
C. 16704
D. 16000

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Question 6

If the population of a city has been increasing at the rate of 10%. The present population of the city is 9680000. Find its population 2 years ago.

A. 800000
B. 8000
C. 80000
D. 8000000

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Question 7

Manish opened a cafe with an initial investment of Rs. 64000. In the first year he incurred the loss of 10%. During second year he gained the profit of 4% and in the third year he gained the profit of 15%. Calculate his net profit gained in the entire three years.

A. 68889.5
B. 4889.6
C. 68889.61
D. 68889.6

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Question 8

Max bought a gadget for Rs. 21000. If the cost of the gadget after 2 years depreciates to Rs. 18162, find the rate of depreciation.

A. 20%
B. 5%
C. 15%
D. 7%

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Question 9

The bacteria in a culture grows by 5% in the first hour, decreases by 10% in the second hour and increases by 2% in the third hour. If the original count of the bacteria is 50000, Calculate the count of bacteria at the end of 3 hours.

A. 48000
B. 48195
C. 24097
D. 24095

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Question 10

The initial population of a country is 1000000. If the birth rate and the death rate is 10% and 4% respectively, then find the population of the country after 2 years.

A. 1126000
B. 1023600
C. 1123000
D. 1123600

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Question 11

The population of a city is increasing at the rate of 10% per annum. Calculate the population of the city on this basis after 3 years if the current population is 10000.

A. 12100
B. 13100
C. 13310
D. 1210

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Question 12

The population of a sate decreases every year at the rate 4% per annum. The population of the state 3 years ago was 150000. Find present population.

A. 576000
B. 138240
C. 57600
D. 13824

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Question 13

The population of a village was 10000 four years ago. If it had increased by 2%, 2.5%, 3%, 2% in last four years. Find the present population of the village.

A. 267.903
B. 260
C. 266.903
D. 266

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Question 14

The population of the town is 30000. The annual birth rate is 5% and the annual death rate is 3%. Calculate the population after 2 years.

A. 61212
B. 612
C. 312
D. 31212

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Question 15

The present population of a village is 10000. If it increases at the rate of 2% per annum, find the population after 2 years.

A. 10404
B. 10004
C. 10402
D. 10400

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Question 16

The present price of a cycle is Rs 8000. If its value is decreasing every year by 10% then find the price before 3 years.

A. 10977
B. 10976
C. 10975
D. 10974

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Question 17

The production of spare parts rose to 25000 from 16000 in 2 years. Find the rate of growth per annum.

A. 25
B. 20
C. 250
D. 200

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Question 18

The value of a gadget worth Rs.10000 is depreciating at the rate of 10% per annum. In how many years will its value be reduced to Rs 6561?

A. 5
B. 3
C. 4
D. 2

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Question 19

The value of a land increases every year at the rate of 8%. If its value at the end of 3 years be Rs 6000000, find its original value at the beginning of these years.

A. 4762994
B. 3762994
C. 3000000
D. 4000000

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Question 20

Two years ago the population of a village was 4000. If the annual increase during the two successive years be at the rate of 2% & 4%, find the present population.

A. 7074
B. 7080
C. 7072
D. 7000

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Question 21

Vidhya started a business with initial investment of 500000. She incurred a loss of 2% in the first year and in the second year she gained the profit of 10%. Calculate her net profit earned.

A. 39000
B. 38000
C. 41000
D. 40000

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