1.

The temperature in Churu is measured in °C at different time and represented o number line(i) The temperature of Churu on following date from above number line :(a) 26 January ………..(b) 25 December ……….(c) 25 February ……….(d) 25 March …………(ii) What is the difference in temperature between the hottest and the coldest day?(iii) The temperature of 26 January is how much less than the temperature of 25 February?(iv) Can we say that sum of temperature of 25 December and 25 february is greater than the temperature of 26 jan?

Answer»

(i) Temperature of Churu on number line:

(a) -11°C on 26 January
(b) -6°C on 25 December
(c) 4°C on 25 February
(d) 14°C on 25 March

(ii) Temperature of hottest day = 14°C

Temperature of coldest day = (-11°C)

Difference in temperature = 14°C – (-11°C)

= 14°C + 11°C

= 25°C

(iii) Temperature of 26 January = -11°C

Temperature of 25 February = 4°C

∴ Difference in temperature = -11°C – 4°C = – 15°C

(iv) Temperature of 25 December = -6°C

Temperature of 25 February = 4°C

∴ Sum of Temperature = -6°C + 4°C = – 2°C

Temperature of 26 January = -11 °C,

So the sum of the temperature of 25 December and 25 February is greater than the temperature of 26 January.



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