Answer :
She will have $64 saved on the sixth day.
Day 1- $2
Day 2- $2+$2
Day 3- $4+$4
Day 4- $8+$8
Day 5- $16+$16
Day 6- $32+$32 = $64
Day 1- $2
Day 2- $2+$2
Day 3- $4+$4
Day 4- $8+$8
Day 5- $16+$16
Day 6- $32+$32 = $64
she has 64 dollars because if you write it out...
Day 1 2 3 4 5 6
Amount $ 2 (x2) 4 (x2) 8 (x2) 16 (x2) 32 (x2) 64
Day 1 2 3 4 5 6
Amount $ 2 (x2) 4 (x2) 8 (x2) 16 (x2) 32 (x2) 64