Question

if x1,x2,x3,x4,x5 are in Arithmetic progression
if x3=20
what is x1+x2+x3+x4+x5?
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Answer 1

Answer:

Let the first term be a and common difference be d x1 + x7 + ... x1,x2,x3,.... are in A.P.. If ... NTSE AP Stage 1 2017 Class 10 Aptitude Test Maths. 20 Qs ... Determine an arithmetic progression, where a and b are constants.

Step-by-step explanation:

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