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ICSE Class X Math 2023 Paper

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Question : 29 of 41
Marks: +1, -0
The 5  th   5^{\;\text{th }\;} term and the 9  th   9^{\;\text{th }\;} term of an Arithmetic Progression are 4 and -12 respectively.
Find :
(a) the first term
(b) common difference
(c) sum of 16 terms of the AP.
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