Question

the average age of four numbers is 35.if first three numbers are 29,36 and 33 respectively, find the fourth number​

Answer 1

Answer:

42

Step-by-step explanation:

average=sum of observations/ no.of observations

=29+36+33+x/4 =35

=98+x/4=35

=98+x=140

x=42

Answer 2

Answer:

average = sum of all observations ÷ total no. of observations

$35 = \frac{29 + 36 + 33 + fourth \: no.}{4}$

160 = 98+ fourth no.

fourth no. = 160-98 = 62

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