At a shopping mall, the air conditioner is set so that it reduces temperature at the rate of 4°C every hour. If at 10 a.m. the temperature inside the mall was 35°C, what will be the temperature inside the mall at 6 p.m.?
A 4°C
B 6°C
C 3°C
D 7°C
nice
Ans 2:
Class : Class 7
it should be D right? it decreases 4C every hour, therefore it should be at 7C at 6PM.
Ans 3:
Class : Class 7
Time duration between 10 A.M and 6 P.M = 8 hoursRate of decrease in temperature = 4 degree C/hourDecrease in temperature after 8 hours = (8*4)degree C = 32 degree CTemperature at 10 A.M (current temperature) = 35 degree CTherefore, temperature after 6 P.M = (35-32) degree C = 3 degree CSo the correct option is (C).