Question

if y+1, 2y and 5 are in A.P then find the value of y​

Answer 1

Answer:

value of y is 2 if y+1,2y and 5 are in AP.

Answer 2

Step-by-step explanation:

y+1 , 2y and 5 are in AP

a = y+1 , d = 2y - (y +1) = 2y - y -1 = y-1

t1 = y+1 , t2 = 2y , t3 = 5

tn = a + (n-1)d .... formula

t3 = (y+1) + (3-1) (y-1 )

5 = y+1 + 4( y-1)

5 = y+1 +4y -4

5 = 5y -3

5+ 3 = 5y

y = 8/ 5