In a sequence of consecutive integers ,how much greater is the sum of the last four integers than the sum of the first four integers ?

A 10

B 12

C 14

D 16

Solution

Correct Answer: Option D

মনে করি ৪ টি ক্রমিক সংখ্যা যথাক্রমে x,x+1,x+2,x+3,x+4,x+5,x+6,x+7
প্রশ্নমতে,
(x+4+x+5+x+6+x+7)-(x+x+1+x+2+x+3)
= 22-6
= 16

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