Question

first term is 30 and the sum of first four tearm is 300 what is the first three terms​

Answer 1

Step-by-step explanation:

given:

first term is 30 and the sum of first four tearm is 300 what is the first three terms

to find :

what is the first three terms

solution :

• subtract 30 from 300

• 270, it's sum of second and third term

• half of 270 is 135

• first term is 30

• second term is 135

• third term is also 135

Answer 2

Answer:

you should be specific about what type of series it is .. I had solved assuming AP..

hope it will do .

Step-by-step explanation:

a = 30

sum of n terms= n/2(2a+(n-1)d)

sum of four terms= 4/2(2*30+(4-1)d) = 300

on solving we get

d = 30..

so the no. will be.. as

30,60,90,120..!