Question

in alaska the temperature was -15 in the morning; by noon the temperature had increased by 20 by 9:00 p.m, the temperature has dropped 30. what temperature was it at 9:00 p.m.? answer

Answer 1

Given,

Temperature in Alaska in morning = -15 unit

Now,

⇒Temperature at Noon = Temperature of morning + 20 unit

∴ Temperature at Noon = - 15 unit + 20 unit = 5 unit.

Again,

⇒ Temperature at 9:00 P.M. = Temperature at Noon - 30 unit

 ∴ Temperature at 9:00 P.M. = 5 unit - 30 unit = -25 unit.

Therefore, temperature in Alaska at 9:00 P.M will be -25 unit.

Answer 2

The answer is  -25°C
In morning temperature was -15
in noon temperature increased by 20 so new temp = -15+20=5°C
In night temperature dropped by 30°C so new temp = 5-30=25°C