Page 68 - NUMINO Challenge_M2
P. 68
This year, Leslie is 12, her sister Carla is 10, and their uncle is
32 years old. How many years later will the sum of Leslie’s and
Carla’s ages be equal to their uncle’s age?
Key Point
After After After
1 year 2 years 3 years
Leslie 13 14 15
Carla 11 12 13
Uncle 33 34 35
Storage A holds 55 sacks of sand and storage B holds 5 sacks.
Each day, 3 sacks of sand are moved from storage A to storage
B. How many days will it take for storage A to have twice the
number of sacks than storage B?
Key Point
Each day, storage A loses
3 sacks of sand, and
storage B gains 3 sacks.
65Problem Solving
32 years old. How many years later will the sum of Leslie’s and
Carla’s ages be equal to their uncle’s age?
Key Point
After After After
1 year 2 years 3 years
Leslie 13 14 15
Carla 11 12 13
Uncle 33 34 35
Storage A holds 55 sacks of sand and storage B holds 5 sacks.
Each day, 3 sacks of sand are moved from storage A to storage
B. How many days will it take for storage A to have twice the
number of sacks than storage B?
Key Point
Each day, storage A loses
3 sacks of sand, and
storage B gains 3 sacks.
65Problem Solving
