a lamp post has half of its length in mud,1 by 3 of its length in water and 3 whole 1by3m above water. find the whole length of
the post
2 answers:
Answer:
20 m
Step-by-step explanation:
Given:
- Length in mud = ¹/₂ its length
- Length in water = ¹/₃ its length
- Length above water = 3 ¹/₃ m
Let x be the length of the lamp post.
Convert 3 ¹/₃ to an improper fraction:
The total length of the lamp post (x) is the sum of the three given lengths:
Multiply both sides by 6:
Isolate x:
Therefore, the whole length of the post is 20 m.
Answer: 20m
Step-by-step explanation: Correct option is A)
Let the total length of the post be x m
Then length of post in mud= x/2
Length of post in water = x/3
Given
x/2-x/3=10/3
x/6=10/3
x=20
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