Question

Two arithmetic progressions have the same
common difference. The difference between their
20th terms is 20, what is the difference between
their 199th terms?​

Answer 1

Answer:

20

20th term of 1st - 20th term of 2nd = 20

AP AP

a1 + 19d. - a2 - 19d. = 20

a1 - à2 = 20

a1 + 198d - à2 - 198d = ?

a1 - à2 = ?

a1 - à2 = 20

so, 198th term of - 198th term of = 20

1st AP 2nd AP

Answer 2

Answer:

It will be 20 beacise Commod difference and nth term are equal for both terms

Step-by-step explanation:

See the above image