Page 56 - NUMINO Challenge_D1
P. 56
Problem solving
1 There are 10 marbles in total. One marble weighs Key Points
18 g, another marble weighs 13 g, and the
remaining eight marbles weigh 10 g each. Count the number of
Marbles are placed on the balances as shown marbles on both
below. Find out which marble weighs 18 g. sides of the balance
to predict the weight
of the other balance.
379 146 10 8 179
25
459
178
2 There are 10 identical gold coins. Eight of the The lighter sides of
coins have the same weight, and the remaining the balance do not
two coins have the same weight. Each of the two contain any heavy
coins weighs more than each of the eight coins. coins.
The coins are placed on the balances as shown
below. Find the two heavy gold coins.
359 79 8 10
135 246
1 7 10
12 67
345 8 9 10
53Words and Logic
1 There are 10 marbles in total. One marble weighs Key Points
18 g, another marble weighs 13 g, and the
remaining eight marbles weigh 10 g each. Count the number of
Marbles are placed on the balances as shown marbles on both
below. Find out which marble weighs 18 g. sides of the balance
to predict the weight
of the other balance.
379 146 10 8 179
25
459
178
2 There are 10 identical gold coins. Eight of the The lighter sides of
coins have the same weight, and the remaining the balance do not
two coins have the same weight. Each of the two contain any heavy
coins weighs more than each of the eight coins. coins.
The coins are placed on the balances as shown
below. Find the two heavy gold coins.
359 79 8 10
135 246
1 7 10
12 67
345 8 9 10
53Words and Logic
