A boy presses a side of a blue pencil to a side of a yellow pencil, holding both pencils vertically. One inch of the pressed side of the blue pencil, measuring from its lower end, is smeared with paint. The yellow pencil is held steady while the boy slides the blue pencil down 1 inch, continueing to press it against the yellow one. He returns the blue pencil to its former position, then again it slides down 1 inch. He continues until he has lowered the blue pencil 5 times and raised it 5 times- 10 moves in all.Supposed that during this time the paint neither dries nor diminishes in quantity. How many inches of each pencil will be sneared with paint after the tenth move? -Riddles

Question

A boy presses a side of a blue pencil to a side of a yellow pencil, holding both pencils vertically. One inch of the pressed side of the blue pencil, measuring from its lower end, is smeared with paint. The yellow pencil is held steady while the boy slides the blue pencil down 1 inch, continueing to press it against the yellow one. He returns the blue pencil to its former position, then again it slides down 1 inch. He continues until he has lowered the blue pencil 5 times and raised it 5 times- 10 moves in all.Supposed that during this time the paint neither dries nor diminishes in quantity. How many inches of each pencil will be sneared with paint after the tenth move? -Riddles

asked Feb 3, 2022 by anonymous

1 Answer

Answer :

At the start, 1inch of the yellow pencil gets smeared with wet paint. As the blue pencil is moved downward, a second inch of the blue pencils smears a second inch of the yellow pencil. Each pair of down and up movesof the blue pencil smears 1 more inch of each pencil. 5 pairs of moves will smear 5 inches. This together with the initial inch, makes 6 inches for each pencil.

answered Feb 3, 2022 by anonymous

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Description : Dynamite is a tool that can be used to cut down trees. To cut a tree 18 inches in diameter requires five sticks of dynamite: one on the north, south, east and west sides of the tree, and the ... you instruct the diver to put the fifth stick of dynamite if you wanted the tree to fall north? -Riddles

Last Answer : It doesn't matter where the fifth stick is placed, since the tree won't fall in any direction. Being wood, it will float and rise to the surface.

If a company is given credit terms of 2/10, n/30, it should a. hold off paying the bill until the end of the credit period, while investing the money at 10% annual interest during this time. b. pay within the discount period and recognize a savings. c. pay within the credit period but don't take the trouble to invest the cash while waiting to pay the bill. d. recognize that the supplier is desperate for cash and withhold payment until the end of the credit period while negotiating a lower sales price.

Description : If a company is given credit terms of 2/10, n/30, it should a. hold off paying the bill until the end of the credit period, while investing the money at 10% annual interest during ... desperate for cash and withhold payment until the end of the credit period while negotiating a lower sales price.

Last Answer : b. pay within the discount period and recognize a savings.

A king decided to let a prisoner try to escape the prison with his life. The king placed 2 marbles in a jar that was glued to a table. One of the marbles was supposed to be black, and one was supposed to be blue. If the prisoner could pick the blue marble, he would escape the prison with his life. If he picked the black marble, he would be executed. However, the king was very mean, and he wickedly placed 2 black marbles in the jars and no blue marbles. The prisoner witnessed the king only putting 2 black marbles in the jars. If the jar was not see-through and the jar was glued to the table and that the prisoner was mute so he could not say anything, how did he escape with his life? -Riddles

Description : A king decided to let a prisoner try to escape the prison with his life. The king placed 2 marbles in a jar that was glued to a table. One of the marbles was supposed to be black, and one was ... and that the prisoner was mute so he could not say anything, how did he escape with his life? -Riddles

Last Answer : The prisoner grabbed one of the marbles from the jar and concealed it in his hand. He then swallowed it, and picked up the other marble and showed everyone. The marble was black, and since the other marble was swallowed, it was assumed to be the blue one. So the mean king had to set him free

Up and down,up and down, touching neither sky nor ground. What is it? -Riddles

Description : Up and down,up and down, touching neither sky nor ground. What is it? -Riddles

Last Answer : A pump handle.

Arrange the knitting sequence in correct order 1. Needle falls, old loop rises closing latch of the needle 2. Needle is now ready to repeat cycle 3. Old loop is held on the stem of the needle. The latch is open 4. Old loop is cast off; new loop pushes the lap to open; needle rises and the new loop slides down to the stem of the needle 5. New loop is formed around the hook of the needle a. 2,1,5,3,4 b. 3,5,1,4,2 c. 3,5,4,1,2 d. 2,1,4,3,5

Description : Arrange the knitting sequence in correct order 1. Needle falls, old loop rises closing latch of the needle 2. Needle is now ready to repeat cycle 3. Old loop is held on the stem of the needle. The latch is open 4. Old loop is cast off; new ... a. 2,1,5,3,4 b. 3,5,1,4,2 c. 3,5,4,1,2 d. 2,1,4,3,5

Last Answer : b. 3,5,1,4,2

A student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that he moves gradually the flame towards the lens and each time focuses its image on the screen. (a) In which direction does he move the lens to focus the flame on the screen? (b) What happens to the size of the image of the flame formed on the screen? (c) What difference is seen in the intensity (brightness) of the image of the flame on the screen? (d) What is seen on the screen when the flame is very close (at about 5 cm) to the lens?

Description : A student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that he moves gradually the flame towards the lens and each time focuses its ... d) What is seen on the screen when the flame is very close (at about 5 cm) to the lens?

Last Answer : (a) The student moves the lens away from the screen to focus the image because on moving the candle towards the lens, the image distance increases. (b)The size of the image increases when the object ... on the screen. A virtual image is formed behind the candle on the same side of the screen.

What is happening when paint dries?

Description : What is happening when paint dries?

Last Answer : During the manufacture of paint, solvents are added to make the paint thinner so that it can be applied to various surfaces. Once the paint is applied, the solvents evaporate and the resins and pigments that make up the paint for a thin, solid layer on the surface.

While painting with Aluminium paint, a little quantity of ………..shall be added to the paint while doing the first coat to distinguish it from the second coat a) little blue paint* b) lamp black c) red paint d) green paint

Description : While painting with Aluminium paint, a little quantity of ………..shall be added to the paint while doing the first coat to distinguish it from the second coat a) little blue paint* b) lamp black c) red paint d) green paint

Last Answer : a) little blue paint*

While painting with red oxide paint, a little quantity of ………..shall be added to the paint while doing the first coat to distinguish it from the second coat a) little blue paint b) lamp black* c) red paint d) green paint

Description : While painting with red oxide paint, a little quantity of ………..shall be added to the paint while doing the first coat to distinguish it from the second coat a) little blue paint b) lamp black* c) red paint d) green paint

Last Answer : b) lamp black*

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