Application of Formula of CI

Q.

A scooter was bought at ₹42000 and its value depreciated at the rate of 8% per annum. Find its value after one year.

1. ₹48640

2. ₹48000

3. ₹38000

4. ₹38640

Q.

The value of a machinery is Rs.10000, which is depreciating at the rate of 15% annually. What will be the value of the machinery after 2 years in rupees?

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Q.

The compound interest is always same whether there is a decrease or increase in the rate of interest.

1. True

2. False

Q.

The cost of a car depreciates at the rate of $20\%$ every year. If its present worth is ₹315600, find the purchase value of the car, if it was purchased two years back.

1. ₹4, 93, 125

2. ₹2, 01, 984

3. ₹4, 10884

4. ₹2, 22, 884

Q.

For a compound interested sum which of the following details are necessary?

1. Principal

2. Interest rate

3. Time taken to return loan

4. Conversion periods

Q.

A bacterial population doubles every hour. If there are 1000 bacteria now, when were 125 bacteria present?

1. 2 hours ago

2. 3 hours ago

3. 5 hours ago

4. 1 hour ago

Q.

What will be the population of a country after 5 years at an annual increase of 10%?

1. Population × (1 - 10/100)^1/5

2. Population × (10/100)⁵

3. Population × (1+ 10/100)⁵

4. (Population × 10 × 5)/100

Q.

The rate of increase in population is 25%. What will be the population after 2 years if the initial population is 20000?

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Q.

The cost of a bike, purchased 2 years ago, depreciates at the rate of $20\%$ every year. If its present worth is ₹35600, find its purchase price.

1. ₹55625

2. ₹50625

3. ₹43175

4. ₹49352

Q. The compound interest on Rs.8, 000 at $20\%$ per annum for 9 months compounded quarterlyis

1. 1, 261
2. 1, 271
3. 1, 260
4. 1, 281