The temperature at 12 noon was 10 deegree above zero. If it decreases at the rate of 2 degree celcius per hour until midnight, at what time would the temperature be 8 degree celcius below zero?
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night 9'oclock it will be 8degree Celsius below zero
tanvi7654:
how
subract 2 degree from 10 degree upto 8 degree below zero
at 1 =8°, 2=6°, 3=4°, 4=2° , 5=0° , 6= -2° 7= -4° , 8=-6° , 9= -8° so we can say at 9'oclock it will be 8° below zero
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12 noon = 10 degrees;
So, 1pm = 8 degrees; 2 pm = 6 degrees; 3 pm = 4 degrees; 4 pm = 2 degrees ; 5pm = 0 degrees; 6 pm= -2 degrees; 7 pm = -4 degrees; 8 pm = -6 degrees; 9pm = -8 degrees.
Hence, we know that the temperature will be -8 degrees at 9 pm
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