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Question 55Asked in RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)

The height of a tree varies as the square root of its age. When the age of the tree is 324

The height of a tree varies as the square root of its age. When the age of the tree is 324 years, its height is 19 feet. What will be the height of the tree (in feet) at the age of 81 years?
  1. A9.01
  2. B8.39
  3. C9.5
  4. D9.14
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Correct answer: (C) 9.5

From RRB JE CBT-1 PYQ 20 Feb 2026, Shift 3 (4:30 PM)

This is question 55 of RRB JE CBT-1 PYQ 20 Feb 2026, Shift 3 (4:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.