Question

For a given A.P. sum of 10 terms is 50 and a = 0.5 ,then d = _______ *
​

Answer 1

Answer:

a2-a1

Step-by-step explanation:

a2-a1 is the difference

Answer 2

Answer:

d = 1

Step-by-step explanation:

Given,

Sum of the 10 terms = 50

a = 0.5

Now,

n/2( 2a + ( n - 1)* d) = 50

Put n = 10

10/2(2 * 0.5 + (10 - 1) * d) = 50

5 (1 + 9d) = 50

5 + 45d = 50

45d = 50 - 5

45d = 45

d = 1

Henceforth, d = 1