1
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Question

# What is the common difference of the new arithmetic progression formed after 4 is divided from each of the term of the arithmetic progression 20,28,36,44,...

A
3
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B
2
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C
1
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D
4
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Solution

## The correct option is B 2The common difference of the arithmetic progression 20,28,36,44,... is 8. When 4 is divided to each of its term, the common difference of the resulting A.P. is the also divided by 4. This can also be seen from the resulting A.P. The new A.P. is 5,7,9,11,... Thus the common difference of the new A.P. is 2. Therefore, the correct answer is 'b.

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