The AP whose first term is 10 and common difference is 3 is
A
10, 13, 16, 19, ...
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B
5,7,9, 11, ...
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C
8, 12, 16,20, ...
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D
All the above
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Solution
The correct option is C 10, 13, 16, 19, ... If a1 is the first term, then the nth term is a1+(n−1)d, where d is the common difference Here a1=10,d=3, Hence, a2=a1+(2−1)d=10+3=13 a3=a1+(3−1)d=10+6=16 and so on.....