if the mean of 1 2 3.... x is 6x/11 find the value of x
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Answer:
Step-by-step explanation:
mean =sum/no.
6x/11=[x/2(1+x)]÷x
6x^2/11=(x+x^2)÷2
12x^2/11=x+x^2
12x^2=11x+11x^2
x^2=11x
x^2/x=11
x=11
jarpana2003:
thx
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i knew it
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ok
ok
karadipayale, who answered this ,is my another account. i answered just to mark you as the brainliest. happy now.
thank you soo much
its okay
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