Question

Q5.

Find a, b and c such that the following numbers are in AP: a,
7, b, 23 and c.​

Answer 1

Answer:

-1, 15, 31

Step-by-step explanation:

b -7 = 23 - b

2b = 30

b = 15

d= 15 -7 = 8

a = -1

c = 31

Answer 2

Answer:

a= -1 , b=15, c=31

Step-by-step explanation:

a, 7,b,23,c are in AP

Therefore,difference is common

7-a=b-7=23-b=c-23

b-7=23-b

b+b=23+7

2b=30

b=15

7-a=b-7=15-7

7-a=8

a=7-8=-1

a=-1

23-b=c-23

23-15=c-23

c-23=8

c=8+23=31

c=31