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Which term of the arithmetic progression 5,13, 21...... is 181?

A20th

B21st

C22nd

D23rd

Answer:

D. 23rd

Read Explanation:

a=5,d=8,Xn=181 Xn = a+(n-1)d 181=5+(n-1)8 181=8n-3 184=8n n=23


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