Question

(3) Write the value of x in the A. P. 3, 7, 11, x, 19...
(A) 16
(B) 18
(C) 15
(D)17​

Answer 1

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$\mathfrak{The\:Answer\:is}$

a = 2

d = 7-3 = 4

Therefore

a4 = a +3d

= 3+ 3*4

= 15

Therefore,

x = 15

$\boxed{Hope\:This\:Helps}$

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Answer 2

Answer:

15

Step-by-step explanation:

here

a=3

d=7-3=4

n=4

x=a+(n-1)d

=3+(4-1)4

=15