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# Ex.1.1 Q3 Integers - NCERT Maths Class 7

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## Question

In Srinagar, temperature was $$–5^\circ \rm C$$ on Monday and then it was dropped $$2^\circ \rm C$$ on Tuesday. What was the temperature of Srinagar on Tuesday? On Wednesday it rose up by $$4^\circ \rm C.$$ What was the temperature on this day?

Video Solution
Integers
Ex 1.1 | Question 3

## Text Solution

What is known?

Different days and their respective temperatures.

What is the unknown?

The temperature of Srinagar on Tuesday and Wednesday.

Reasoning:

Steps:

Temperature of Srinagar on Monday$$= \,–5^\circ \rm C$$

On Tuesday it  was dropped by $$2^\circ \rm C$$

Temperature on Tuesday

\begin{align}&= -5^\circ \rm C - 2^\circ \rm C \\ &={{\rm -7^\circ C}}\end{align}

On Wednesday it rose up by $$4^\circ \rm C$$

Temperature on Wednesday

\begin{align}&= -7^\circ \rm C\,{\rm{ + }}\,{\rm{4^\circ C}}\\&={\rm{ -3^\circ C}}\end{align}

Thus, temperature on Tuesday was $$–7^\circ \rm C$$ and on Wednesday was $$–3^\circ \rm C.$$

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