Betty spent
45 of her money on some muffins and
37 of her remaining money on 9 biscuits. Each biscuit cost twice as much as a muffin. How many muffins did she buy?
Muffins |
Remaining money |
4x7 |
1x7 |
|
9 Biscuits |
Left |
|
3x1 |
4x1 |
28 u |
3 u |
4 u |
Cost of 1 biscuit = Cost of 2 muffins
(x9)Cost of 9 biscuits = Cost of 18 muffins
3 u = 18
1 u = 18 ÷ 3 = 6
Number of muffins that Betty bought
= 28 u
= 28 x 6
= 168
Answer(s): 168