Question 66

The average of four consecutive odd numbers A,B, C and D respectively is 24. What is the product of B and D ?

Solution

Let the four consecutive odd numbers be a, a+2, a+4 and a+6.
So, their sum is 4a+12 = 96
Or a = 21
So, the four odd numbers are 21,23,25 and 27
So, the required product is 23*27 = 621

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The average of four consecutive odd numbers A,B, C and D respectively is 24. What is the product of B and D ?

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