

Q2310G2-Flashcard-1
Flashcard
•
Mathematics
•
University
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
If the price of a commodity increases by 25%, by what percentage should the consumption be reduced to keep the expenditure constant?
Back
20% reduction in consumption is required to keep expenditure constant when the price increases by 25.
2.
FLASHCARD QUESTION
Front
In a certain code, if 'TIGER' is written as 'QDFHS', how is 'FISH' written in that code?
Back
'FISH' is written as 'GRHE' in the code.
3.
FLASHCARD QUESTION
Front
What is the unit digit of the product 17^53 multiplied by 19^68?
Back
The unit digit of the product is 7.
4.
FLASHCARD QUESTION
Front
The population of a town is 80,000. It increases at 5% per annum. Find the population after 3 years.
Back
The population after 3 years will be 92,610.
5.
FLASHCARD QUESTION
Front
Find the Sum of Factors of 120.
Back
The sum of factors of 120 is 360.
6.
FLASHCARD QUESTION
Front
Define percentage increase.
Back
Percentage increase is the amount of increase expressed as a percentage of the original amount.
7.
FLASHCARD QUESTION
Front
What is the formula for calculating compound interest?
Back
The formula for compound interest is A = P(1 + r/n)^(nt), where A is the amount, P is the principal, r is the rate, n is the number of times interest is compounded per year, and t is the time in years.
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