Question : The median of a set of 11 distinct observations is 73.2. If each of the largest five observations of the set is increased by 3, then the median of the new set__________.

Option 1: is 3 times that of the original set

Option 2: is increased by 3

Option 3: remains the same as that of the original set

Option 4: is decreased by 3

Question : If the radius of a right circular cylinder open at both ends is decreased by 25% and the height of the cylinder is increased by 25%, the curved surface area of the cylinder thus formed:

Option 1: remains unaltered

Option 2: is increased by $25\%$

Option 3: is increased by $6.25\%$

Option 4: is decreased by $6.25\%$

Question : The numerator of a fraction is 6 less than its denominator. If the numerator is decreased by 1 and the denominator is increased by 5, then the denominator becomes 4 times the numerator. Find the fraction.

Option 1: $\frac{5}{11}$

Option 2: $\frac{3}{11}$

Option 3: $\frac{4}{11}$

Option 4: $\frac{7}{11}$

Question : The denominator of a fraction is 4 more than twice the numerator. When the numerator is increased by 3 and the denominator is decreased by 3, the fraction becomes $\frac{2}{3}$. What is the difference between the denominator and numerator of the original fraction?

Option 1: 13

Option 2: 10

Option 3: 12

Option 4: 11

Question : If the radius of a cylinder is decreased by 20% and the height is increased by 20% to form a new cylinder, then the volume will be decreased by:

Option 1: 23.2%

Option 2: 22.3%

Option 3: 32.2%

Option 4: 20.5%

Question : If the price of petrol increased by 7%, then by what percentage should the consumption be decreased by the consumer, if the expenditure on petrol remains unchanged?

Option 1: $6 \frac{58}{107} \%$

Option 2: $5 \frac{11}{107} \%$

Option 3: $3 \frac{49}{107} \%$

Option 4: $4 \frac{99}{107} \%$