Question

on 1 st jan 2016, rodhey to save Rs.20, Rs.25 on the second day and Rs.30 on the third day . he decides to save like this . what would his total saving at end of the month March ?
please give step by step explanation
I will make as breainlieast
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Answer 1

Answer:

74115 ₹

Step-by-step explanation:

on first day rodhey saved = ₹20

on second day he saved=₹25

on third day he saved = ₹30

his total savings = (20+25+30+till march)

here,

d= 1

a= 20

n= 366( as 2016 is a leap year)

Now,

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

S366 = 366/2 [2×20+(366-1)1]

= 183 (40+365)

= 183 × 405

= ₹ 74115

Answer 2

Answer = 74115//

HOPE IT HELPS...

GOOD EVENING...