Question : 7 is added to a certain number and the sum is multiplied by 5. The product is then divided by 3 and 4 is subtracted from the quotient. If the result comes to 16, then what is the original number?

Option 1: 3

Option 2: 1

Option 3: 5

Option 4: 4

Question : The smallest fraction which should be added to the sum of $2\frac{1}{2}, 3\frac{1}{3}, 4\frac{1}{4}$ and $5\frac{1}{5}$ to make the result a whole number is:

Option 1: $\frac{13}{60}$

Option 2: $\frac{1}{4}$

Option 3: $\frac{17}{60}$

Option 4: $\frac{43}{60}$

Question : If $(x-\frac{1}{3x})=\frac{1}{3}$, then the value of $3(x-\frac{1}{3x})$ is:

Option 1: –1

Option 2: –2

Option 3: 1

Option 4: 2

Question : If $(a+\frac{1}{a})=–2$, then the value of $a^{1000}+a^{–1000}$ is:

Option 1: $2$

Option 2: $0$

Option 3: $1$

Option 4: $\frac{1}{2}$

Question : If the sum of a number and its reciprocal is 2. Then the number is:

Option 1: 0

Option 2: 1

Option 3: –1

Option 4: 2