First term of an AP is25 and the 20th term is 500 gind the common difference
Answers
Answered by
1
Answer:
Step-by-step explanation:
a = 25
a20 = a+19d
= 25+19 d = 500
= 19d = 475
= d = 475/19
= d = 25
Jaiprasanth12:
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Answered by
1
Answer:
25
Step-by-step explanation:
First term = a1 = 25
20th term = 500
Find n term:
an = a1 + (n - 1)d
Given that a1 = 25
an = 25 + (n - 1)d
Find d:
Given that the 20th term is 500
500 = 25 + (20 - 1)d
500 = 25 + 19d
19d = 475
d = 475 ÷ 19
d = 25
Answer: The common difference is 25
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