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
Answers
Answered by
8
the answer is -20.
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Answered by
19
☆Hey friend!!!!!☆
====================
Here is your answer ☞
====================
● 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}
======================
Hope it will help you ☺☺☺
======================
Devil_king ▄︻̷̿┻̿═━一
====================
Here is your answer ☞
====================
● 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}
======================
Hope it will help you ☺☺☺
======================
Devil_king ▄︻̷̿┻̿═━一
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