Multiple choice

The average of 10 numbers is calculated as 15.If is discovered later on that while calculating the average on number, namely 36,was wrongly read as 26 .The correct average is - 10 संख्याओं का औसत 15 परिकलित किया गया है। बाद में पता लगता है कि औसत परिकलित करते समय एक संख्या 36 को गलती से 26 पढ़ लिया गया था। सही औसत है -

  1. 14

  2. 16

  3. 18

  4. 20

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sum of 10 numbers with average 15 is 10 × 15 = 150. Since 36 was wrongly read as 26, we must subtract 26 and add 36 to get the actual sum: 150 - 26 + 36 = 160. The correct average is 160 ÷ 10 = 16. Options A (14), C (18), and D (20) are incorrect.