Question:
Which term of the arithmetic progression 5,13, 21...... is 181?
A20th
B21st
C22nd
D23rd
Answer:
D. 23rd
Explanation:
a=5,d=8,Xn=181 Xn = a+(n-1)d 181=5+(n-1)8 181=8n-3 184=8n n=23
Related Questions:
Question:
A20th
B21st
C22nd
D23rd
Answer:
a=5,d=8,Xn=181 Xn = a+(n-1)d 181=5+(n-1)8 181=8n-3 184=8n n=23
Related Questions: