Question : The price of a scooter increases successively by 10%, 5%, and 15%. What is the total percentage increase in the price of the scooter?

Option 1: $32 \frac{33}{40}$%

Option 2: $34 \frac{21}{40}$%

Option 3: $30 \frac{11}{40}$%

Option 4: $36 \frac{31}{40}$%

Question : Which of the following is correct?

Option 1: $\frac{2}{3}< \frac{3}{5}< \frac{11}{15}$

Option 2: $\frac{3}{5}< \frac{2}{3}< \frac{11}{15}$

Option 3: $\frac{11}{15}< \frac{3}{5}< \frac{2}{3}$

Option 4: $\frac{3}{5}< \frac{11}{15}< \frac{2}{3}$

Question : Simplify the following expression.
$\frac{7}{10} \div \frac{3}{7}$ of $\left(2 \frac{3}{10}+2 \frac{3}{5}\right)+\frac{1}{5} \div 1 \frac{2}{5}-\frac{2}{7}$

Option 1: $-\frac{4}{21}$

Option 2: $\frac{5}{21}$

Option 3: $\frac{4}{21}$

Option 4: $-\frac{5}{21}$

Question : Directions: In the following question, find the wrong number in the series.
28, 33, 31, 36, 34, 29

Option 1: 29

Option 2: 36

Option 3: 30

Option 4: 34

Question : The ratio between monthly income and expenditure of Vaidic is 8 : 5. If his income increases by 20% and his expenditure increases by 30%, then find the percentage increase or decrease in his monthly savings.

Option 1: $5 \frac{2}{3}$% increase

Option 2: $5 \frac{2}{3}$% decrease

Option 3: $3 \frac{1}{3}$% increase

Option 4: $3 \frac{1}{3}$% decrease

Question : A manufacturer fixes his selling price at 33% over the cost of production. If the cost of production goes up by 12% and the manufacturer raises his selling price by 10%, his percentage profit is:

Option 1: $28\frac{3}{8}\%$

Option 2: $30\frac{5}{8}\%$

Option 3:

$36\frac{5}{9}\%$

Option 4:

$35\%$