1. The average of four consecutive odd numbers A. B. C and D respectively is 40. What is the product of B and D ?
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By: anil on 05 May 2019 01.19 am
Let the four consecutive odd integers be n-3,n-1,n+1,n+3 Sum of the integers = 4n = $$ 4 imes 40$$ Hence n = 40 Thus b = n-1 = 39 and d = n+3 = 43 product = $$ 39 imes 43 $$ = 1677
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