SSC GD MATHS QUIZ

If the population of city A increases by $20 \%$ and then decreases by $24 \%$, it becomes equal to $16 \frac{1}{6} \%$ of city B's population. Find the population of city A initially, if B's population is 27,360 ?

A person opens a tea shop with an initial investment of Rs. 25,000. He spends 30% of his money in furnishing his shop and 20% in bringing other necessary things. How much money is he left with for purchasing inventory for his business?

If the length and breadth of a rectangle are increased by $8 \%$ and $12 \%$ respectively, then by what percent will the area of that rectangle increase?

When a number is increase by $20 \%$ and then decrease by 20 we get 160 . If a number decreases by $20 \%$ and increases by 20 , what will we get?

A solution contains $32 \mathrm{~g}$ of common salt in $320 \mathrm{~g}$ of water. Calculate the concentration in terms of mass by mass percentage of the solution.

If the difference between 40% of a number and 30% of the same number is 70 , then the number is:

A, B and C are three numbers. A is 20% more than B, and C is 20% less than the sum of A and B. The difference between B and C is what per cent less than A (correct to one decimal place)?

Rekha spends $75 \%$ of her monthly income. If her income increases by $15 \%$ and still she saves the same amount as before, then what is the percentage increase in her expenditure?

What is the single discount equivalent to a series of discounts of $40 \%$ and $20 \% ?$