Question

please give the answers fast​

Answer 1

Answer:

a=75 then ap will be 75,85,95,105

Step-by-step explanation:

using

sn=n/2[2a+(n-1)d] formula

n=4, a=?, d=10 sn=360

360=2{2a+(4-1)10}

360=2{2a+30}

360=4a+60

360-60=4a

300=4a

300/4=a

75=a

hence the ap starts from 75

so a2=75 +10=85

 a3= 75+20=95

 a4=75+30=105

proof: 75+85+95+105=360