Find the Speed of the Elephant

An elephant of length 4 m is at one corner of a rectangular cage of size (16 m x 30 m) and faces towards the diagonally opposite corner. If the elephant starts moving towards the diagonally opposite corner it takes 15 seconds to reach this corner. Find the speed of the elephant.

  1. 1 m/sec
  2. 2 m/sec
  3. 1.87 m/sec
  4. 1.5 m/sec
Manish Listener Asked on 19th June 2015 in Maths.
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1 Answer(s)

Answer: (2) 2 m/sec
Explanation:-
Length of the rectangular park = 30 m
Width of the rectangular park = 16 m
Diagonally length of the park =
Ö(302 + 162)
= Ö(900 + 256)
= Ö1156
= 34 m
Length of the elephant = 4 m
Distance covered by elephant = 34 – 4 = 30 m
Time taken by elephant to cover 30 m distance = 15 sec
Then, speed of the elephant = 30/15 = 2 m/sec
Hence, the answer is (2) 2 m/sec

Anurag Mishra Professor Answered on 19th June 2015.
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