Question

Find a and b if a, 7, b, 23 are in A.P.
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Answer 1

Answer:

..........

Step-by-step explanation:

2,7,13,23

Answer 2

Answer:

a = -1

b = 15

Step-by-step explanation:

a,7,b,23 kn AP then

7-a = b-7 =23-b

now

b-7=23-b

b+b=23+7

2b=30

b=30/2

b=15

now

7-a=b-7

a=7+7-b

a=14-15

a = -1