IBPS PO Reasoning: Stack Arrangement questions with solutions

Q1. Study the information carefully and answer the question given below. Five boxes are placed one above the other in a stack. Box A is placed adjacent to box D. Box E is placed above box C but not in the topmost position. Box D is not placed adjacent to box B. If box F is added to the stack, then box F is placed below box B. All the boxes contain different numbers of pencils in consecutive multiples of 6 from bottom to top. Box A contains 36 pencils and is not placed at an odd-numbered position when counted from the top. More than two boxes are placed above box D. The total number of pencils is not more than 198. Neither box F is kept adjacent to box D. Q14. What is the sum of the numbers of pencils in box E and box F?

1. 54 pencils
2. 48 pencils
3. 42 pencils
4. 60 pencils

Answer: 60 pencils

The positional clues determine the stack order of the boxes. Once the order is fixed, the pencil counts form consecutive multiples of 6 from bottom to top, with A = 36 helping anchor the sequence. The values for E and F add up to 60 pencils.