the mean of 6,10,11,x,12,y is 10. also y is 7 more than x. find the value of x and y
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Answer:
Step-by-step explanation:
Given,
y = x + 7 -------------- (1)
Also, Mean of 6,10,11,x,12,y is 10
=> 6+10+11 + x + 12 + y/6 = 10
=> 39 + x + y = 60
=> x + y = 21
=> x + x + 7 = 21 (∵ from (1), y = x + 7)
=> 2x = 14
=> x = 7.
=> y = x + 7 = 7 + 7 = 14
Thus x = 7 and y = 14.
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