Question

There are 25 arithmetic means between a and b such that the common difference is 4 and the sum of these means is 1375 .find the a and b .

Answer 1

here z d ans...b mns a2 naa

Answer 2

Answer:

a = 3  b = 107

Step-by-step explanation:

a ,  a+d ........................... a+25d  ,  a+26d

|                          |                             |

a                    25 means                 b

for 25 middle terms

25/2 [ 2(a+4)  + 24 * 4 ] = 1325  ... (sum of AP)

solve for a

then put a in " a + 26 * d" -> " a + 26 * 4"