Question : A boy found the answer to the question "subtract the sum of $\frac{1}{4}$ and $\frac{1}{5}$ from unity and express the answer in decimals" to be 0.45. The percentage of error in his answer was ________.

Option 1: $\frac{100}{11}$%

Option 2: $50$%

Option 3: $10$%

Option 4: $\frac{200}{11}$%

Question : $6\frac{1}{4}$% of 1600 + $12\frac{1}{2}$% of 800 equals:

Option 1: 100

Option 2: 200

Option 3: 300

Option 4: 400

Question : If $\frac{11-13x}{x}+\frac{11-13y}{y}+\frac{11-13z}{z}=5$, then what is the value of $\frac{1}{x}+\frac{1}{y}+\frac{1}{z}$?

Option 1: $1$

Option 2: $\frac{13}{11}$

Option 3: $\frac{13}{5}$

Option 4: $4$

Question : A sum of Rs.10 is lent by a child to his friend to be returned in 11 monthly instalments of Re.1 each, the interest being simple. The rate of interest is:

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

Option 2: $21 \frac{9}{11} \%$

Option 3: $10 \frac{2}{11} \%$

Option 4: $9 \frac{1}{11} \%$

Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".

"The Arabian Nights" (1) / are indeed (2) / an interesting book. (3) / No Error (4)

Option 1: (1)

Option 2: (2)

Option 3: (3)

Option 4: (4)

Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".

The doctor asked his patient to regularly take his medicine.

(1) asked his patient

(2) to regularly take his medicine

(3) No Error

(4) the doctor

Option 1: (1)

Option 2: (2)

Option 3: (3)

Option 4: (4)