the average of seven numbers is 49.if 1 is added to the first number, 2 is added second number and 3 is addede to third number and so on upto 7 numbers, what will be average
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Answer:
average is 4.
Step-by-step explanation:
total average of seven numbers=7*49=343.
if 1 is added to first number =1
if 2 is added to second number=2+1=3
if 3 is added to third number =3+3=6
if 4 is added to fourth number=4+6=10
if 5 is added to fifth number=5+10=15
if 6 is added to sixth number = 6+15=21
if 7 is added to seventh number = 7+21= 28.
now,average = total sum of all seven averages/total number of seven averages.
avg=28/7 = 4.
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