Question

The mean of 2, 7, 6 and x is 15 and the mean 18 ,1 ,6 ,x and y is 10 .What is the value of y ?
a) 5
b) 10
c) 20
d) 30

Answer 1

the answer is -20.
please find attachment.
options are incorrect.

Answer 2

☆Hey friend!!!!!☆

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Here is your answer ☞
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● according to the question

=> (2+7+6+x)/4 = 15

=> 15+x = 15×4 = 60

=> X = 60-15

=> X = 45 ______answer

2nd condition :-

(18+1+6+x+y)/5 = 10

=> 25+x+y = 10×5

plug the value of X, we get

=> 25+45+y = 50

=> 70+y = 50

=> y = 50-70

=> y = -20 ________answer

Hence, the value of {X = 45 and Y = -20}

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Hope it will help you ☺☺☺
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Devil_king ▄︻̷̿┻̿═━一