QUESTION 3 - Group: Aptitude - Section: Problem Solving - Marks: 1 The average of 4...
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- Group: Aptitude
- Section: Problem Solving
- Marks: 1
The average of 4 positive integers is 80. First integer is 70 and the last integer is 30. If the ratio of the other two integers is 2:3, then which one of the following is the question for them?
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Answer: B. B) 132
Sum of 4 integers = 4 * 80 = 320. Middle two sum to 320 - (70 + 30) = 220. Divided in 2:3 ratio gives 220 * 3/5 = 132.
Step-by-step Derivation:
Step 1: Total sum = 4 * 80 = 320.
Step 2: Sum of first and last = 70 + 30 = 100.
Step 3: Sum of remaining two = 320 - 100 = 220.
Step 4: Divided in 2:3 ratio: 220 * (3/5) = 132.