If the average of 5 consecutive integers is 12 , what is the sum of the least and the greatest of the integers?

Created: 7 years ago | Updated: 4 years ago

Updated: 4 years ago

AB Bank Ltd AB Bank Ltd - Management Trainee Officer - 06.05.2011 গণিত গড় (Average)

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প্রশ্ন: If the average of 5 consecutive integers is 12 , what is the sum of the least and the greatest of the integers?

 $l e t, 5 c o n s e c u t i v e n u m b e r s a r e x, (x + 1), (x + 2), (x + 3), (x + 4) = x + (x + 1) + (x + 2) + (x + 3) + (x + 4) = 12 \times 5 \Rightarrow 5 x + 10 = 60 \Rightarrow 5 x = 50 ∴ x = 10 ∴ x + 4 = 10 + 4 = 14 ∴ T h e o f t h e l e a s t a n d t h e g r e a t e s t o f t h e i n t e g e r 14 = 10 + 14 = 24$

7 years ago

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