Question

1. On 1st Jan 2016, Sanika decides to save * 10, 11 on second day, 12 on third
day. If she decides to save like this, then on 31st Dec 2016 what would be her total
saving? Sn.​

Answer 1

Answer:

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

Step-by-step explanation:

Here n = 366

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

d = a2 - a1 = 11 - 10 = 1

a3 - a2 = 12 - 11 = 1

Sn = 366/2 [2×10 (366 -1)1]

= 188 [20 (365)]

= 188 [ 7300]

= 1,372,400

Answer 2

Answer:

hi good morning

why are u saying sorry dear