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The temperature at 12 noon was 10°C above zero If it der-decreases at the rate of2°C per hour |
Answer» n : Temperature at 12 NOON = 10°C above 0°C = 10°C It decreases at 2° per hour.Final temperature = 8°C below 0 = -8°CChange in temperature = 10 - ( -8 ) = 18°C.Rate of DECREASE = 2° per hour.Time = 18 / 2 = 9 hours.So, Time at which temperature would be 8 °C below zero = 12:00 + 9:00 = 21:00 So, the time at which temperature goes 8°C below 0 is 9:00 PM.Also, The temperature at 12 :00 PM = 10° C, As temperature decreases at 2°C,Temperature at MIDNIGHT = 10° C - 2 ( 12 ) = 10 - 24 = -14° C.Hope helped! |
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