M4maths
Maths Puzzle
Numerical Ability
Time and Work
In a row, 25 trees are planted at equal distance from each other. The distance between Ist and 25th tree is 30 m. What is the distance between 3rd and 15th tree?
1) 8 m 2) 15 m 3) 16 m 4) 18 m
Read Solution (Total 3)
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- Ans: (2) 15 m
Solution: The distance between 1st and 25th tree gives 24 equal gaps.
Given, 24 gaps = 30 m
Therefore, 1 gap = 30/24 m = 5/4 m
Thus, Distance between 3rd and 15th tree means 12 equal gaps, that is 12 * 5/4 = 15 m - 8 years agoHelpfull: Yes(5) No(0)
- Let the distance between each tree = x m
then total distance among 25 tree= (25-1)x=24x
given,
24x=30
x=30/24=1.25
hence the distance between each tree= x m =1.25 m
so the distance between 3rd to 15th tree= (15-3)*1.25=15 m
again
distance - 8 years agoHelpfull: Yes(1) No(0)
- 25-1=24,30/24=1.25. 15-3=12*1.25=15
- 7 years agoHelpfull: Yes(0) No(0)
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