17
Set up the problem as: y=number of yellow marbles & 4y=number of blue marbles. 40=y+4y or 40=5y or y=8. Therefore number of blue marbles is 4*8 = 32.
45
That's an odd question, isn't it?
5
There has to be 12 marbles in the group. If 4 are red that is 1/3 of 12 and if 3 are blue that is 1/4 of 12. The rest can be any color. That is how you explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group :)
In order for 4 red marbles to be one-third of a group and 3 blue marbles to make up one-fourth of the same group the number has to equal 12.
23
Let the number of marbles Jerry has be ( x ). Then Tom has ( x + 17 ) marbles. Together, they have 50 marbles, so we can set up the equation ( x + (x + 17) = 50 ). Solving this gives ( 2x + 17 = 50 ), leading to ( 2x = 33 ) and ( x = 16.5 ). Thus, Tom has ( 16.5 + 17 = 33.5 ) marbles, which means Tom has 17 more marbles than Jerry.
Depends on your nose, you have to try. Then dial 911.
it's the LCM of 18 and 42 18 = 2x32 42 = 2x3x7 LCM = 2x32x7 = 126
Yes you can be. For example some people are allergic to oranges (though technically you can slice it up and put it in your nose).
You hold the grips in one hand and use the long nose to remove or pick up items in hard to access holes or corners where fingers won't fit.