Question

Following number line shows the temperature in degree celsius (co) 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 temperature of Srinagar and Shimla taken together is less than the
temperature at Shimla? Is it also less than the temperature at Srinagar?​

Answer 1

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

Solution:-

By observing the number line, we can find the temperature of the cities as follows,

Temperature at the Lahulspiti is -8°C

Temperature at the Srinagar is -2°C

Temperature at the Shimla is 5°C

Temperature at the Ooty is 14°C

Temperature at the Bengaluru is 22°C

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

Solution:-

From the number line we observe that,

The temperature at the hottest place i.e., Bengaluru is 22°C

The temperature at the coldest place i.e., Lahulspiti is -8°C

Temperature difference between hottest and coldest place is = 22°C – (-8°C)

= 22°C + 8°C

= 30°C

Hence, the temperature difference between the hottest and the coldest place is 30°C.

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

Solution:-

From the given number line,

The temperature at the Lahulspiti is -8°C

The temperature at the Srinagar is -2°C

∴The temperature difference between Lahulspiti and Srinagar is = -2°C – (8°C)

= – 2°C + 8°C

= 6°C

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(d) Can we say temperature of Srinagar and Shimla taken together is less than the

temperature at Shimla? Is it also less than the temperature at Srinagar?

Solution:-

From the given number line,

The temperature at Srinagar =-2°C

The temperature at Shimla = 5°C

The temperature of Srinagar and Shimla taken together is = – 2°C + 5°C

= 3°C

∴ 5°C > 3°C

So, the temperature of Srinagar and Shimla taken together is less than the temperature at Shimla.

Then, 3°> -2°

No, the temperature of Srinagar and Shimla taken together is not less than the temperature of Srinagar.

Answer 2

Answer:

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