Question

af A1 & A2are 2 AM 's between 20 and 80, is then A1+A2 equal to 40,60,80,100
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Answer 1

Answer:

please write the answer

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

If A1 & A2 are 2 AM 's between 20 and 80, is then A1 + A2 =

40

60

80

100

EVALUATION

Here it is given that A1 & A2 are 2 AM 's between 20 and 80

So 20 , A1 , A2 , 80 form an arithmetic progression

First term = a = 20

Let Common Difference = d

Now 4th term = 80

⇒ a + 3d = 80

⇒ 20 + 3d = 80

⇒ 3d = 60

⇒ d = 20

Thus

2nd term = A1 = 40

3rd term = A2 = 60

Hence A1 + A2 = 40 + 60 = 100

FINAL ANSWER

Hence the correct option is 100

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