Average of 3 odd nambers
is 21. If the desterence
between the smallest and
the largest of these numbers is 18. What is the
third number?
Answers
Answered by
2
Step-by-step explanation:
let the first even no. = 2x
then
2nd even no. =2x+2
3rd even no. = 2x+4
Given highest even no.=16
so
2x+4=16
2x=12
x=6
so Ist even no.= 2×6 =12
2nd even no.= 14
3rd even no. = 16
average of sum of even no = (12 + 14 + 16)/3
= 42/3
= 14
let 1st odd no. = 2p+1
then
2nd odd no. = 2p+3
3rd odd no. = 2p+5
average sum of odd no. = (2p+1 + 2p+3 + 2p+5)/3
=(6p+9)/3
=2p+3
A.T.Q.
avg sum of even no. + avg sum of odd no. =21
14 + 2p+3=21
2p + 17= 21
2p = 4
p =2
so smallest odd no is 2p +1
i.e.
2×2 +1
=5
Answered by
13
Answer:
P=2
SMALLEST NO=5
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