Page 150 - NUMINO Challenge_M1
P. 150
The weight of 1 is equal to the pull of the helium balloon.
1
Each helium balloon has the same pull, so in the second scale, a balloon
can be taken from each side of the scale and it will still be balanced.
33
The weight of 3 is equal to the pull of one helium balloon, so it has the
same weight as 1 . 3
On the third scale, the weight of 2 is equal to the pull of 2 helium balloons,
so it is twice the weight of 1 .
2
The fourth scale will remain balanced if marble 1 is taken away and a helium
balloon is added to the left side.
4
It will remain balanced if a helium balloon is taken from each side of the scale.
4
The weight of 4 is equal to the pull of 3 helium balloons.
The heaviest marble is 4 .
13Answer Key
1
Each helium balloon has the same pull, so in the second scale, a balloon
can be taken from each side of the scale and it will still be balanced.
33
The weight of 3 is equal to the pull of one helium balloon, so it has the
same weight as 1 . 3
On the third scale, the weight of 2 is equal to the pull of 2 helium balloons,
so it is twice the weight of 1 .
2
The fourth scale will remain balanced if marble 1 is taken away and a helium
balloon is added to the left side.
4
It will remain balanced if a helium balloon is taken from each side of the scale.
4
The weight of 4 is equal to the pull of 3 helium balloons.
The heaviest marble is 4 .
13Answer Key
