Question : The number of flights in a 110-metre hurdle race is_______.

Option 1: 8

Option 2: 9

Option 3: 10

Option 4: 11

Question : Find the value of the given expression:
$10 \div 5 × 1+3 - [8 - \{5 - (7 - 7 - 9)\}]$

Option 1: 11

Option 2: 10

Option 3: 9

Option 4: 8

Question : If $\frac{21\cos A+3\sin A}{3\cos A+4\sin A}=2$, then find the value of cot A.

Option 1: $\frac{9}{11}$

Option 2: $\frac{11}{9}$

Option 3: $\frac{1}{3}$

Option 4: $\frac{11}{10}$

Question : The sum of a non-zero number and twice its reciprocal is $\frac{33}{4}$. Find the number.

Option 1: 9

Option 2: 10

Option 3: 11

Option 4: 8

Question : The radii of two cylinders are in the ratio 3 : 4 and their heights are in the ratio 8 : 5. The ratio of their volumes is equal to:

Option 1: 9 : 10

Option 2: 8 : 9

Option 3: 9 : 11

Option 4: 7 : 10

Question : If a 10% loss is made on the selling price, the percentage of loss on the cost price will be:

Option 1: $11\frac{1}{9}\%$

Option 2: $9\frac{1}{11}\%$

Option 3: $10\%$

Option 4: $11\%$