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4.Average
medium
The average of five consecutive odd integers is $27 .$ What is the product of the first and the last number?
A
$621$
B
$667$
C
$713$
D
$725$
Solution
Average of five consecutive odd number is $3^{\text {rd}}$ number $=27$
$\therefore 1^{\text {st }}$ Number $=23$
$5^{\text {th }}$ Number $=31$
Product $=23 \times 31=713$
Standard 13
Quantitative Aptitude