Mrs Ian baked some biscuits. She gave
25 of the biscuits to her best friend and
49 of the remainder to her uncle. Given that she gave 20 less biscuits to her uncle than her best friend. How many biscuits did
she bake at first?
| Best Friend |
Remainder |
Total |
| 2x3 |
3x3 |
5x3 |
| |
Uncle |
Left |
|
| 6 u |
4 u |
5 u |
15 u |
Number of less biscuits that Mrs Ian gave to her uncle than her best friend
= 6 u - 4 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Number of biscuits that Mrs Ian baked at first
= 15 u
= 15 x 10
= 150
Answer(s): 150
