Question : Five members of a team are weighted consecutively, and their average weight is calculated after each member is weighted. If the average weight increases by one kilogram each time, how much heavier is the last player than the first one?
Option 1: 4 kg
Option 2: 20 kg
Option 3: 8 kg
Option 4: 5 kg
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 8 kg
Solution : Let the average weight of 1st member be $x$ kg. Given: The average weight increases by one kilogram each time. Average weight of first two members $= (x+1)$ kg Total weight of 1st two members $= 2(x+1) = 2x+2$ Weight of 2nd member $= 2x+2-x = (x+2)$ The average weight of second and third members $= (x+3)$ kg Total weight of second and third members $= 2(x+3) = 2x+6$ Weight of 3rd member $= 2x+6-x-2 = (x+4)$ The average weight of third and fourth members $= (x+5)$ kg Total weight of third and fourth members $= 2(x+5) = 2x+10$ Weight of 4th member $= 2x+10-x-4 = (x+6)$ Average weight of fourth and fifth members $= (x+7)$ kg Total weight of fourth and fifth members $= 2(x+7) = 2x+14$ Weight of 5th member $= 2x+14-x-6 = (x+8)$ $\therefore$ The last member is 8 kg heavier than the first member. Hence, the correct answer is 8 kg.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : Ram, Shyam, Rohan, Reeta, and Mukesh are five members of a family who are weighed consecutively and their average weight is calculated after each member is weighed. If the average weight increases by 2 kg each time, how much heavier is Mukesh than Ram?
Question : In a hotel, there are 120 staff members. Their average weight is 62.5 kg. When one of the staff members leaves the hotel, the average weight is reduced by 250 g. Find the weight of the staff member who left the hotel.
Question : The average weight of a team of 20 people was calculated to be 59.8 kg and it was later discovered that one weight was misread as 68 kg instead of 77 kg. The correct average weight is:
Question : There are 15 students in a class. Their average weight is 40 kg. When one student leaves the class, the average weight is 39.5 kg. What is the weight of the student who left the class (where kg means kilogram)?
Question : The average weight of 12 persons increases by 3.5 kg when a new person comes in place of one of them weighing 58 kg. The weight of the new person is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile