Mathematics
The cost of a machine depreciates every year by 10%; the percentage decrease during two years will be:
20%
18%
19%
21%
Compound Interest
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Answer
Let initial value of machine be ₹ x.
For first year :
P = ₹ x
Rate of depreciation = 10%
n = 2 years
Depreciation = Initial value - Final value = .
By formula,
Hence, option 3 is the correct option.
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Related Questions
During 2023, the population of a small village was 45,000 which increased every year by 5%. The population during the year 2024 was:
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none of these
Assertion (A): On a certain sum and at a certain rate,
C.I. for 3rd year = Amount of 3rd year - Amount of 2nd year
Reason (R): A in 3 years = Principal + C.I. for 3 years and A in 2 years = Principal + C.I. for 2 years
⇒ A in 3 years - A in 2 years = C.I. for 3rd year
A is true, but R is false.
A is false, but R is true.
Both A and R are true, and R is the correct reason for A.
Both A and R are true, and R is the incorrect reason for A.
Assertion (A): Interest for 5th year = Interest in 5 years - Interest in 4 years
Reason (R): Interest of 5th year = Amount in 5 years - Amount in 4 years
A is true, but R is false.
A is false, but R is true.
Both A and R are true, and R is the correct reason for A.
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