Question

the common difference of two AP is same, if the difference between 25th term is 50 then the difference between their 50th term is a)25 b)50 c)75 d)100​

Answer 1

common difference of two AP is same = d

25th term of first AP = x + 24d

25th term of second AP = y + 24d

(x+24d) - (y+24d) = 50

x - y = 50

50th term of first AP = x+49d

50th term of second AP = y+ 49d

(x+49d) - (y+49d) = x + 49d - y - 49d

= x - y

= 50

hope it helps....