average tough questions - Wikitechy https://www.wikitechy.com/interview-questions/tag/average-tough-questions/ Interview Questions Tue, 07 Sep 2021 06:32:20 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png average tough questions - Wikitechy https://www.wikitechy.com/interview-questions/tag/average-tough-questions/ 32 32 The average of three numbers is 77. The first number is twice the second and the second number is twice the third. Find the first number ? https://www.wikitechy.com/interview-questions/average/the-average-of-three-numbers-is-77-the-first-number-is-twice-the-second-and-the-second-number-is-twice-the-third-find-the-first-number/ https://www.wikitechy.com/interview-questions/average/the-average-of-three-numbers-is-77-the-first-number-is-twice-the-second-and-the-second-number-is-twice-the-third-find-the-first-number/#respond Tue, 17 Aug 2021 11:01:13 +0000 https://www.wikitechy.com/interview-questions/?p=1758

The average of three numbers is 77. The first number is twice the second and the second number is twice the third. Find the first number ?

A. 33

B. 66

C. 77

D. 132

Answer : D. 132

Explanation :

Sum of the numbers = 3 × 77 = 231
Let third number be x
Then, second number = 2x
First number = 4x
x + 2x + 4x = 231
⇒x = 33
First number = 4x
x = 132

]]> https://www.wikitechy.com/interview-questions/average/the-average-of-three-numbers-is-77-the-first-number-is-twice-the-second-and-the-second-number-is-twice-the-third-find-the-first-number/feed/ 0