Question

If a5=100, a10 = 300, find a2020​

Answer 1

Step-by-step explanation:

a+4d=100

a+9d=300

- - -

__________

0-5d=-200

d=-200/-5

d=40/1

a+4×40/1=300

a+160/1=300

a=300×1/160

a=150/80

a=15/8

a+2019d

15/8+2019×40/1

15/8+80760/1

__15 +_646080________

8

646095

_______

8

80761.875

Answer 2

Answer:

a2020=60600

Step-by-step explanation:

a5=100

a10=300

=> a10=3(a5)

=======> 10 ----->3

          2020------->?

=>2020(3)/10=606

=a2020=606(a5)

=a2020=60600

Ans.