Question

1st term 30.,the sum of the 1st 5 term is 300.write the 1st three terms?​

Answer 1

Answer:

30,45,50

Step-by-step explanation:

a=30

S5=300;

S5=n/2(2a+(n-1)d)

==5/2(60+4d)

==150+10d=300

==10d=150; d=15

So;

a, a+d, a+2d

a=30

a=30a+d=45

a=30a+d=45a+2d=60