ice making machines

When common salt is added to crushed ice to make a freezing mixture the temperature is lowered below 0 o C. This is because ice absorbs heat from salt which is at a higher temperature and some ice melts dissolving some salt in it. This process continues till..

A machine can make 1,200 rugs in 3 hours. Which graph shows the relationship between the number of rugs produced by the machine and the time taken? => Graph 2 or Graph 3 or Graph 1 or Graph 4..

A manufacturer makes two models A and B of a product, each to be processed by two machines. To complete one unit of model A, machines I and II must work 1 hour and 2 hours respectively. To complete one unit of model B, machines I and II must work 4 hours and ..

A machine makes 138 copies in 4 hours. How many copies can it make in 66 hours, if number of hours and the number of copies vary directly? => 2277 or 2310 or 2279 or 2275..

A manufacturer makes two models A and B of a product ,each should be processed by two machines. To complete one unit of model A, machines I and II must work 1 hour and 2 hours respectively. To complete one unit of model B, Machine I and II must work 4 hours a..

Olga bought 7 5 / 6 gallons of milk. She used 5 2 / 3 gallons of it to make ice cream. How much milk is left? => 2 2 / 7 or 2 1 / 4 or 2 1 / 3 or 2 1 / 6..

Diane bought 5 / 9 cup of milk for making an ice cream. She used only 1 / 9 cup of milk. How much milk was left? => 4 / 5 or 1 / 9 or 4 / 9 or 5 / 9..

Danielle bought 7 6 / 7 gallons of milk. She used 4 3 / 4 gallons of it to make an ice cream. How much milk is left? => 3 3 / 28 or 3 2 / 15 or 11 3 / 4 or 3 1 / 7..

A papaya ice cream recipe requires 1 1 / 2 cups of ripe papaya, 1 / 2 cup orange juice, 3 / 16 cups lemon juice, 1 3 / 4 cups whipping cream and 1 / 2 cup honey. How many cups of ripe papaya and whipping cream are required to make papaya ice cream? ..

Telefacsimile's or Fax machines are a must for many businesses around the world. The fax machine however, did not become widely used until the late 1980's. A fax means basically scanning a page to make an electronic representation of its text or graphics, compresses t..