Question
The average of five consecutive odd numbers is 53. What
is the average of the first three numbers among them?Solution
ATQ, Let the first number be 'a'. So, the numbers are a, (a + 2), (a + 4), (a + 6), (a + 8). ATQ: a + a + 2 + a + 4 + a + 6 + a + 8 = 53 × 5 Or, 5a + 20 = 265 Or, 5a = 245 Or, a = 245 / 5 = 49 So, the first three numbers are 49, 51, and 53. Required average = (49 + 51 + 53) / 3 = 153 / 3 = 51. Alternative solution: If the average of five consecutive odd numbers is 53, then the third number is 53 (since the average is equal to the middle term). So, the 2nd and 1st numbers are 51 and 49, respectively. So, the average of 49, 51, and 53 is 51 as the three numbers are also consecutive odd.
A coastal area was flooded with sea water and resulted in heavy salt deposits in the nearby area. After a few days, it was observed that many plants die...
Which of the following parameters contributed to the DPI value of 445-50 for March 2024?
How many Grand Slam titles has Australian tennis player Ashleigh Barty won so far?Â
 What is the Capital Adequacy Ratio (CRAR) required for Urban Cooperative Banks (UCBs)?
Which of the following organizations is not a regulatory body?
Chinnar Wildlife Sanctuary is located in which Indian state?
Which one of the following statements is correct as per the Constitution of India?Â
The Lesser Himalaya is separated from the ‘Dun’ by the which of the following?
The 7th World Ayurveda Congress (WAC) was held from December 2 to 4, 2016 at Science City?
What is the maximum annual turnover limit for Micro Enterprises as per the classification guidelines for manufacturing and service enterprises?
