The solution M # 126 is correct! Excellent!

M # 127. The radius of a solid iron sphere is 8 cm. Eight rings of iron plates of external radius

and thickness 3 cm are made by melting this sphere. Find the internal diameter of each ring.]]>]]>

The solution M # 125 is perfect! Splendid!

M # 126. The radii of internal and external surfaces of a metallic spherical shell are 3 cm and 5 cm respectively. It is melted and recast into a solid right circular cylinder of height

centimeters. Find the diameter of the base of the cylinder.]]>]]>

The solution M # 124 is perfect! Excellent!

M # 125. A farmer runs a pipe of internal diameter 20 cm from the canal into a cylindrical tank in his field which is 10 m in diameter and 2 m deep. If water flows through the pipe at the rate of 3 km/hour, in how much time will the tank be filled?

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The solution M # 123 is correct! Neat work!

M # 124. A well with inner radius 4 m is dug 14 m deep. Earth taken out of it has been spread evenly all around a width of 3 m to form an embankment. Find the height of the embankment.

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The solution M # 122 is correct! Neat work!

M # 123. A rectangular tank 15 meter long and 11 meter broad is required to receive entire liquid contents from a full cylindrical tank of internal diameter 21 meter high and length 5 meter. Find the least height of the tank that will serve the purpose.

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M # 122. Water in a canal 1.5 m wide and 6 m deep is flowing with a speed of 10 km/hour. How much area will it irrigate is 30 minutes is 8 cm of standing water is desired?

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The solution M # 120 is correct! Neat work!

M # 121. A well of diameter 3 meters is dug 14 meters deep. The earth taken out of it has been spread evenly all around it to a width of 4 meters to form an embankment. Find the height of the embankment.

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is perfect! Excellent, bobbym!

M # 120. A cylindrical jar of radius 6 cm contains oil. Iron spheres of radius 1.5 cm are immersed in the oil. How many spheres are necessary to raise the level of the oil by two centimeters?

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