Back Office Aptitude Test

Explanation
To find the missing number, we can rearrange the equation: 2194 + 6873 - 1951 - ? = 3587. Simplifying the equation, we have 7116 - ? = 3587. To solve for the missing number, we subtract 3587 from 7116, resulting in 3529. Therefore, the missing number is 3529.

Explanation
After John washed his car, it looked very clean.

Explanation
If Peter gets 80% of the questions correct, it means he answered 80% of the questions correctly. Since there are 20 questions in total, 80% of 20 is 16. Therefore, Peter got 16 questions correct. To find out how many questions he got wrong, we subtract the number of questions he got correct from the total number of questions. So, 20 - 16 = 4. Therefore, Peter got 4 questions wrong.

Explanation
Since the children are born at intervals of 3 years, we can assume that the ages of the children form an arithmetic sequence. Let the age of the youngest child be x. The ages of the other children would then be x+3, x+6, x+9, and x+12. The sum of these ages is given as 50. Therefore, x + (x+3) + (x+6) + (x+9) + (x+12) = 50. Simplifying this equation gives 5x + 30 = 50. Solving for x, we find that x = 4. Hence, the age of the youngest child is 4 years.

Explanation
The given question asks if Figure A minus Figure B equals Figure C. The answer "Yes" implies that subtracting Figure B from Figure A results in Figure C.

Explanation
If 20 men can complete the job in 30 days, it means that the total work required to complete the job is equivalent to 20 men working for 30 days. To find out how many days 25 men would take to complete the same job, we can use the concept of man-days. Since the total work required remains the same, and the number of men has increased to 25, the number of days required would decrease. By using the formula: (number of men1 * number of days1) = (number of men2 * number of days2), we can calculate that 25 men would need 24 days to complete the job.

Explanation
The relationship between a doctor and a hospital is that a doctor works in a hospital. Similarly, the relationship between a professor and a college is that a professor works in a college. Both professions are associated with a specific institution where they practice their respective fields. Therefore, the correct answer is Professor : college.

Explanation
Lew is sitting to the left of Florian, and Christopher is sitting to the right of Xian. Mars is sitting to the right of Florian and left of Xian. Jennifer is sitting to the right of Christopher. Based on this information, the person sitting to the right of Jennifer would be Lew.

Explanation
Praveen is to the right of Amar because the given information states that Amar is to the right of Sathish, who is to the right of Siva. Since Praveen is the only remaining person, he must be to the right of Amar.

Explanation
The pattern in the given sequence is that each number is obtained by multiplying the previous number by a prime number and then adding 1. Starting with 6, we multiply by 2 and add 1 to get 11. Then, we multiply 11 by 3 and add 1 to get 34. Continuing this pattern, we multiply 34 by 5 and add 1 to get 171. Finally, we multiply 171 by 7 and add 1 to get 1201. Therefore, the next number in the sequence would be obtained by multiplying 1201 by 11 and adding 1, which gives us 3601.

Explanation
The word "Car" does not belong with the others because "Seats," "Tire," and "Engine" are all parts/components of a car, whereas "Car" is the whole object itself.

Explanation
The pattern in the series is that the number 11 appears after every second number. The numbers in between alternate between increasing by 2 and staying the same. Therefore, the next number should be 15, as it is the next number in the pattern and follows the alternating pattern of increasing by 2.

Explanation
The person in question is the child of my mother's sister's brother's wife. This means that the person is the child of my mother's sibling's spouse. Since the person is the child of my mother's sibling's spouse, they would be my cousin.

Explanation
The correct answer is 28 because the sum of the first five prime numbers (2 + 3 + 5 + 7 + 11) equals 28.

Explanation
The clock ticks 6 times in a span of 30 seconds, which means each tick takes 30/6 = 5 seconds. Since there are 12 hours on a clock, it would take 12*5 = 60 seconds for the clock to tick 12 times. However, the question asks for the time it takes at 12 o'clock, which is the same as 0 o'clock. Therefore, it would take 60/2 = 30 seconds for the clock to tick 12 times at 12 o'clock. As the question asks for the time between the first and last ticks, it would be 30 seconds * 2 = 60 seconds. However, the given options do not include this answer, so the correct answer is not available.