объяснение:
путь скорость время
туда х км 15 км/ч х/15 ч
обратно х км 10 км/ч х/ 10 ч
составим уравнение: х/10 - х/15 = 1 | · 30
3 x - 2x = 30
x = 30 (км)
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Всего 294 конфеты.
5х+9х=294
14х=294
х=21
Значит, конфет "Белочка" было 5 умножить на 21 =105, а "медвежонок" 9 умножить на 21 = 189.