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# Following number line shows the temperature in degree celsius$(^{\circ}\ C)$ 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 temperature of Srinagar and Shimla taken together is less than the temperature at Shimla? Is it also less than the temperature at Srinagar?

"

**Given:**

The number line shows the temperature in degree celsius$(^{\circ}\ C)$ at different places on a particular day.**To do:**

We have to answer the given questions.

**Solution:**

(a) From the given number line, we can observe that,

Temperature at Bengaluru is $22^{\circ}C$

Temperature at Ooty is $14^{\circ}C$

Temperature at Shimla is $5^{\circ}C$

Temperature at Srinagar is $-2^{\circ}C$

Temperature at Lahulspiti is $-8^{\circ}C$

(b) The temperature at the hottest place(Bengaluru) is $22^{\circ}C$

The temperature at the coldest place(Lahulspiti) is $-8^{\circ}C$

The temperature difference between the hottest and the coldest places $=22^{\circ}C-(-8^{\circ}C)$

$=22^{\circ}C+8^{\circ}C$

$=30^{\circ}C$

(c) Temperature at Lahulspiti is $-8^{\circ}C$.

Temperature at Srinagar is $-2^{\circ}C$.

This implies,

The temperature difference between Lahulspiti and Srinagar $=-2^{\circ}C-(-8^{\circ}C)$

$=-2^{\circ}C+8^{\circ}C$

$=10^{\circ}C$

(d) The temperature at Srinagar $=-2^{\circ}C$

The temperature at Shimla $=5^{\circ}C$

The temperature of Srinagar and Shimla taken together $= -2^{\circ}C +5^{\circ}C$

$= 3^{\circ}C$

Here,

$5^{\circ}C>3^{\circ}C$

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

Also,

$3^{\circ}C>-2^{\circ}C$

Therefore, the temperature of Srinagar and Shimla taken together is not less than the temperature of Srinagar.

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