Question

The sum of 3 number in Ap is 18 . If the product of first and third number is five times the common difference, find the number.[let these numbers be (a-d),a and (a+d)]​

Answer 1

Answer:

NUMBERS ARE => 2,6,10

Step-by-step explanation:

a-d+a+a+d=18

3a=18

a=6

Acc to question =>

(a-d)(a+d)=5d

$a^2-d^2$=5d

36-$d^2$=5d

d=4

so,

a-d=6-4=2

a=6

a+d=6+4=10

Answer 2

Answer:

NUMBERS ARE => 2,6,10

Step-by-step explanation:

a-d+a+a+d=18

3a=18

a=6

Acc to question =>

(a-d)(a+d)=5d

=5d

36-=5d

d=4

so,

a-d=6-4=2

a=6

a+d=6+4=10

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