The heights of three buildings A , B and C are in the ratio 2 : 6 : 9 . Their mean height is 182 m. Find the height of Building B ?
Answers
Answered by
1
Answer:
Sum of heights/3=Mean height
S/3=182
Sum of heights=182×3=546
let heights be 2x,6x and 9x
A.T.Q
2x+6x+9x=546
17x=546
x=546/17
so the height of B will be 6x=6×546/17
Answered by
0
Answer:
Let height of building A be 2k
therefore,
height of building B be 6k
& height of building C be 9k
ATQ
(2k+6k+9k)/3=182
=>17k/3=182
=>17k=182×3
=> k=546/17
=> k=32.117
=> k=32.18
therefore,
height of building B=32.18×6
=193.08approx
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