Page 59 - NUMINO Challenge_D1
P. 59
Creative Thinking
1 Out of 27 tablets, one of the tablets is heavier than the rest. What is
the least number of times you must use the balance in order to find the
heavy tablet?
2 Among these five rings, one has a different weight. It is unknown
whether it is heavier or lighter than the other rings. The weight of one
additional ring is used as a standard, as it is the same as the weight of
each of the four identical rings. Using this standard weight, the ring
with a different weight can be found using the balance at least two
times. The balances were used as shown below. Which ring has a
different weight?
Standard 23 4
1
1
45
56 NUMINO Challenge D1
1 Out of 27 tablets, one of the tablets is heavier than the rest. What is
the least number of times you must use the balance in order to find the
heavy tablet?
2 Among these five rings, one has a different weight. It is unknown
whether it is heavier or lighter than the other rings. The weight of one
additional ring is used as a standard, as it is the same as the weight of
each of the four identical rings. Using this standard weight, the ring
with a different weight can be found using the balance at least two
times. The balances were used as shown below. Which ring has a
different weight?
Standard 23 4
1
1
45
56 NUMINO Challenge D1
