Question : The average weight of A, B, C and D is 33 kg. C is 12 kg lighter than A, while B is 6 kg heavier than C. D's weight is 10 kg less than that of C. What is the average weight of A and D?
Option 1: 34 kg
Option 2: 33 kg
Option 3: 35 kg
Option 4: 32 kg
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 32 kg
Solution : Average weight of A, B, C, and D = 33 kg C is 12 kg lighter than A. B is 6 kg heavier than C. D is 10 kg less than that of C. Let the value of A be $x$ kg. Weight of C $= x - 12$ kg Weight of B $= x - 12 + 6 = x - 6$ kg Weight of D $= x -12 - 10 = x - 22$ kg Average = $\frac{\text{Sum of values}}{\text{Number of values}}$ So, the average of A, B, C, and D $= \frac{x+x-12+x-6+x-22}{4} = \frac{4\text{x}-40}{4} = x -10$ Now, $x - 10 = 33$ ⇒ $x = 33 + 10 = 43$ kg Then, the weight of A = 43 kg Weight of D $= x - 22 = 43 - 22 = 21$ kg So, the average weight of A and D $= \frac{43+21}{2} = \frac{64}{2} = 32$ kg $\therefore$ The average weight of A and D is 32 kg. Hence, the correct answer is 32 kg.
Answer Key | Cutoff | Selection Process | Preparation Tips | Eligibility | Application | Exam Pattern
Question : Directions: There are eight persons, A, B, C, D, E, F, G and H, all having different weights. Only two persons are lighter than F. F is heavier than A but lighter than B. D is lighter than E but heavier than G. H is lighter than A. C is heavier than E. C is
Question : The average weight of A, B, and C is 40 kg. If the average weight of A and B is 35 kg and that of B and C is 31 kg, then what is the weight of B?
Question : The average weight of nine persons is 25 kg. If a new person joins this group, then the average weight becomes 26 kg. What is the weight of the new person?
Question : In a class, the average weight of 4 boys is 50 kg and the average weight of 4 girls is 40 kg. What is the average weight of all the 8 students taken together?
Question : The average weight of the 25 members of the group is 39 kg. The average weight of 27 members of another group is 21 kg. What will be the total weight of the members of both groups?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile