if 4,a,b ,28 are in the arthimetic progression then find the value of b
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Answered by
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Step-by-step explanation:
the value of b is 20..
hope it helps
Answered by
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Answer:
a-4=b-a
2a=b+4
a=b/2+2
b-a=28-b
a=2b-28
b/2+2=2b-28
3b/2=30
b=20
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