1. Following number, line shows the temperature in degree celsius (°C) at different places on a particular day.

(a) Observe this number line and write the temperature of the places marked on it.         

(b) What is the temperature difference between the hottest and the coldest places among the above?

(c) What is the temperature difference between Lahulspiti and Srinagar?

(d) Can we say the temperature of Srinagar and Shimla taken together is less than the temperature at Shimla? Is it also less than the temperature at Srinagar?       

Answers (1)

(a) The temperature of the places in degree celsius (°C) marked on it   are :

Places

Temperature

Lahulspiti

-8^{\circ} C

Srinagar

-2^{\circ} C

Shimla

5^{\circ} C

Ooty

14^{\circ} C

Bangalore

22^{\circ} C


(b) The hottest temperature is 22^{\circ} C and coldest is -8^{\circ} C

The temperature difference between them = [22-(-8)]^{\circ} C = (22+8)^{\circ} C = 30^{\circ} C


(c) The temperatures at Lahulspiti is -8^{\circ} C and Srinagar is -2^{\circ} C

The temperature difference between Lahulspiti and Srinagar is  = [(-2)-(-8)]^{\circ} C = (-2+8)^{\circ} C = 6^{\circ} C


(d) The temperatures at Srinagar is -2^{\circ} C and Shimla is 5^{\circ} C 

The temperature of Srinagar and Shimla taken together = [(-2)+5]^{\circ} C = 3^{\circ} C

which is less than temperature of Shimla.

But, it is not less than the temperature at Srinagar.


 

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