and it is lowered at the rate of 5°C per hour.
An electrical company earns a profit of * 800 on every colour television and loss of
500 on every refrigerator.
(a) The company sells 5000 pieces of colour television and 2000 pieces of refrigerator
find its profit or loss.
(6) Find the number of refrigerator it must sell to have no profit no loss, if the compar
sells 4000 pieces of colour television.
An elevator is 250 m below the ground level and it ascends at the rate of 50 m
minute. Find the time taken by it to reach 500 m above the ground level.
MATICS WORKBOOK-7
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