Question
Average of nine consecutive numbers is 65. Find the sum
of smallest and largest number.Solution
Let the numbers be (a - 4), (a - 3), (a - 2), (a - 1), a, (a + 1), (a + 2), (a + 3) and (a + 4).
So, (a - 4 + a - 3 + a - 2 + a - 1 + a + a + 1 + a + 2 + a + 3 + a + 4) ÷ 9 = 65
Or, (9a/9) = 65
Or, 'a' = 65
Required sum = a - 4 + a + 4 = 2a = 2 × 65 = 130
Who is the first female appointed as Head of human spaceflight program of National Aeronautics and Space Administration in June 2020?
The National Education Policy 2020 emphasizes which of the following?
Typically, ______ are papers bearing the promise of a future stream of monetary returns over a certain period of time.
Schedule Commercial Banks’ gross non-performing assets (GNPA) ratio continued its downtrend and fell to a low of 3.9 per cent in March 2023 and the n...
Who launched the Sukanya Samridhi Yojana?
Who won the 2024 International Booker Prize for "Perfection" (original title: "Vincenzo")?
Business, commerce and movement within India are described as part of the Constitution?
Which of the following country’s team had won the FIFA World Cup 1978?
Who was the founder of the Independent Labour Party in India?
Which state hosted the 36th National Games of India?
Relevant for Exams:
