Question

A.P. 64, 60,56, ... के पदों की संख्या ज्ञात कीजिए ताकि योगफल 544 हो । दो उत्तरों की व्याख्या कर। ।
[CBSE 2005]​

Answer 1

Answer:

16&17

Step-by-step explanation:

544=n/2*(2*64+(n-1)*-4)

By solving this we get,

n^2-33n+272=0

n

Then, n=16&17

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