Question

12. The temperature of a city at 12'0 clock is 20°C, every hour it rises by 2°C, what is the temperature
at 5p.m.
a) 30°c
b)35°c
c)-30°c
d)-35°c


answer with explanation pls

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Answer 1

Answer:

Since the temperature falls 2° C in every one hour. So, at 12 midnight the temperature will be - 14° C.

Answer 2

Answer:

Option a.) 30°

Step-by-step explanation:

Step-by-step explanation:Temperature at 12 'O'clock is = 20°

It is rising every hour by 2°

⇒If one hour is passed then the time will be 1:00 Pm and the temperature will be:

⇒ 20° + 2° = 22° at 1:00 Pm

⇒Like this, 5 hours has been passed then the time will be 5:00 Pm and the temperature will be:

⇒ 20° + 2° x 5 hours (since 5 hours passed)

⇒ 20° + 10

⇒ 30° at 5 Pm