Q2310G2-Flashcard-1

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.

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.

Front

What is the unit digit of the product 17^53 multiplied by 19^68?

Back

The unit digit of the product is 7.

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.

Front

Find the Sum of Factors of 120.

Back

The sum of factors of 120 is 360.

Front

Define percentage increase.

Back

Percentage increase is the amount of increase expressed as a percentage of the original amount.

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.

Front

Explain the concept of unit digit in multiplication.

Back

The unit digit in multiplication is the digit in the ones place of the product of two numbers.

Front

What is the formula for the sum of the first n natural numbers?

Back

The formula is S = n(n + 1)/2.

Front

Define factors in mathematics.

Back

Factors are numbers that divide another number without leaving a remainder.