Math, asked by groupbajao, 8 months ago

A family saves Php 1 000 in January, Php 1,200 in February, Php 1, 400 in March, and so on. How much will they save in one year? * A.25200 B.2500 C.22500 D.33000

Answers

Answered by sahitya17
15

Step-by-step explanation:

let a = 1000

and d = 200

Then their monthly savings are like

a,a+d,a+2d.....

They form an a.p

now in one year = 12 months,

a12 = a+(12-1)d

= 1000+11(200)

= 1000+2200 = 3200

total savings in one year

s12 =12/2(a+a12)

= 6(4200) = 25200

please mark as brainliest if you understand ☺️

Similar questions