Question

(•). There are 37 terms in an A.P., the sum of three terms placed exactly at the middle
is 225 and the sum of last three terms is 429. Write the A.P.​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

since 37 terms in A.P.

middle term=37+1/2=38/2=19th

so, middle terms are 17th,18thand 19th.

give sum of these middles are 225

so, t16+t17+t18= 225........(1)

t34+t35+t36=429........(2)

by solve these two equations you get an A.P