At Srinagar temperature was -5 degree Celsius on Monday and then dropped by 2 degrees on Tuesday. What was the temprature of Srinagar on Tuesday. On Wednesday, it rose by 4 degree Celsius. What was the temperature on this day?
temperature of srinagar on monday = -5 degree celsius
we will represent dropping of temperature by negative sign and rising up by positive sign.
so, on tuesday the temperature will be -5+(-2) = -5-2 = -7 degree celsius
and on wednesday the temperature will be -7+(+4) = -7+4 = -3 degree celsius.