Math, asked by knox4630, 6 months ago

The mean of five numbers is 37. If one number is excluded , their mean is 35. Find the excluded

number ​

Answers

Answered by dimplepatel5477
0

Answer:

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Answered by wasimjatoi211
2

The excluded number is 45

Step-by-step explanation:

Let the five numbers used for mean are

V, W, X, Y, Z

The mean of five numbers is

(V+W+X+Y+Z) /5 = 37

Or

(V+W+X+Y+Z) = 37 ×5

V+W+X+Y+Z = 185 (i)

now mean of four numbers

Let Z be Excluded

Then

(V+W+X+Y) /4 = 35

Or

(V+W+X+Y) = 37 × 4

V+W+X+Y = 140 (ii)

Now subtract (ii) from (i)

V+W+X+Y+Z = 185

- (V+W+X+Y = 140)

V+W+X+Y+Z = 185

-V-W-X-Y = - 140

It gives

Z= 45

Hence, 45 be the number which is excluded.

Hope it helps

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