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The average height of 27 persons was recorded as 162 cm. If the height of Shreyas was deleted from the observation, the average height reduced by 1 cm. What was Shreyas? height?
- A184 cm.
- B226 cm.
- C179 cm.
- D186 cm.
Answer not set
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0
CCommunity
Solution
Let Shreyas's height be 'x' cm.
Since, Average decreases by 1 cm,
$\frac{27\times162-x}{26}=161$.
$x=162+26=188 cm$.
Hence, Option E is correct.
Let Shreyas's height be 'x' cm.
Since, Average decreases by 1 cm,
$\frac{27\times162-x}{26}=161$.
$x=162+26=188 cm$.
Hence, Option E is correct.
0
CCommunity
total height of 27 person=162*27=4374cm
If shreyas height is deleted now the member will be 26 and average height will be reduced by 1 cm ,so it will be 162-1=161
Total height=161*26=4186cm
So shreyas height will be 4374-4186=188cm
If shreyas height is deleted now the member will be 26 and average height will be reduced by 1 cm ,so it will be 162-1=161
Total height=161*26=4186cm
So shreyas height will be 4374-4186=188cm