Question

The temperature at a mountain base camp was −3 degrees Celsius on Monday. Tuesday morning, the temperature was 2 degrees Celsius lower than it was on Monday. By Tuesday evening, the temperature was 4 degrees Celsius lower than it was that morning. What was the temperature at the base camp Tuesday evening?

−9 degrees Celsius
−6 degrees Celsius
−5 degrees Celsius
−1 degrees Celsius

Answer 1

Temperature at a mountain base during Monday morning = -3 degree celcius

Temperature at Tuesday morning = (-3) - 2 = (-5)

Temperature at Tuesday evening = 4 lesser than tuesday morning temperature = (-5) - 4

= (-9)

Therefore , the temperature at the base camp during tuesday evening was :

(a) −9 degrees Celsius