Natalie spent
34 of her money on some biscuits and
47 of her remaining money on 8 wafers. Each wafer cost twice as much as a biscuit. How many biscuits did she buy?
Biscuits |
Remaining money |
3x7 |
1x7 |
|
8 Wafers |
Left |
|
4x1 |
3x1 |
21 u |
4 u |
3 u |
Cost of 1 wafer = Cost of 2 biscuits
(x8)Cost of 8 wafers = Cost of 16 biscuits
4 u = 16
1 u = 16 ÷ 4 = 4
Number of biscuits that Natalie bought
= 21 u
= 21 x 4
= 84
Answer(s): 84