Question

Sanvi decided to save some money during the two week holiday she saved Rs 2 on the first day Rs 5 on second day Rs 8 on third day and so on how much did she have at the end of vacation? If she continues savings in the some way how long would it takes to exceed the total savings Rs 610?

Answer 1

Answer:

let n = 29 days

d =common difference

let s = saving

s=n/2 (2a+(n-1)*2)

s=29/2(2*2+(29-1)*2)

s=29/2(4+28*2)

s=29/2(56+4)

s=29*2*60

s=29*30

s=870

value dipicted is economy

Explanation:

Answer 2

let n=14 days

d=common difference

let s=saving

s=n/2(2a+(n-1×2)

s=14/2(2×2+(14-1)×2)

s=14/2(4+28×2)

s=14/2(56+4)

s=7×60

s=420