DELHI POLICE MATHS QUIZ

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Question 1:

If price of wheat increased by $10 \%$, a person who initially buy $22 \mathrm{~kg}$. quantity of wheat for Rs. 800, how much will he buy ?

Question 2:

45% of the total candidates who appeared for an examination were girls. 75% of the boys and 80% of the girls passed, and 144 girls failed. How many boys failed?

Question 3:

If $40 \%$ of $\mathrm{A}^{\prime}$ s income is equal to $50 \%$ of $\mathrm{B}^{\prime} \mathrm{s}$ income and B's income is equal to $\mathrm{x} \%$ of A's income then the value of $\mathrm{x}$ is -

Question 4:

Length of rectangle increased by $15 \%$, and the breadth of rectangle is decreased by $15 \%$, then find the percentage change in its area.

Question 5:

Two numbers are in the ratio 5 : 7. If 30 is added to 10% of the smaller number then the number obtained is 15 less than 25% of the larger number then the smaller number is:

Question 6:

Shiva pays $40 \%$ income tax on the tax, he has to pay a surcharge of $15 \%$. Thus the net tax rate he has to pay is -

Question 7:

A company gives $15 \%$ commission to his salesman on total sales and $1 \%$ bonus on the sales over Rs. 18750. If salesman deposit Rs. $65437.50$ after deducting his earning from total sales. Find total sales?

Question 8:

Reshma spends 84 % of her income. If her income increases by 30 % and savings increase by 40 %, then by what percentage will her expenditure increase (correct to one decimal place)?

Question 9:

Vishal and Seema have the sum of Rs. 5144. Vishal spends 12% of his money while Seema spends 18% of his money. They are then left with a sum that constitutes 85% of the whole sum. Find the amount of Seema.

Question 10:

A student first increases a number by $14 \frac{2}{7} \%$ and then decreases it by $16 \frac{2}{3} \%$ to get 200 . How much will he get at the end of $7 \frac{1}{7} \%$ of the number?