Q20Short answerExercise 5.3
The first term of an AP is –5 and the last term is 45. If the sum of the terms of the AP is 120, then find the number of terms and the common difference.
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n = 6, d = 10 7n – 1 11 11a – 6b
The first term of an AP is –5 and the last term is 45. If the sum of the terms of the AP is 120, then find the number of terms and the common difference.
n = 6, d = 10 7n – 1 11 11a – 6b