Question 81(iii)

As part of his science project, Prithvi was supposed to record the temperature every hour one Saturday from 6 Am to midnight. At noon, he was taking lunch and forgot to record the temperature. At 8:00 PM, his favourite show came on and so forgot again. He recorded the data. So, collected on a graph sheet as shown below.

Estimate the temperature at noon and 8 PM.

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Solution

At 12 PM, the temperature is $19^{\circ} C$ and at 8 PM, it is $10^{\circ} C$ .

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Q. Question 81(i)

As part of his science project, Prithvi was supposed to record the temperature every hour on Saturday from 6 AM to midnight. At noon, he was taking lunch and forgot to record the temperature. At 8:00 PM, his favourite show came on and so forgot again. He recorded the data so collected on a graph sheet as shown below.

Why does it make sense to connect the points in the situation?

Q. Question 81(i)

As part of his science project, Prithvi was supposed to record the temperature every hour on Saturday from 6 AM to midnight. At noon, he was taking lunch and forgot to record the temperature. At 8:00 PM, his favourite show came on and so forgot again. He recorded the data so collected on a graph sheet as shown below.

Why does it make sense to connect the points in the situation?

Q. Question 81(ii)

As part of his science project, Prithvi was supposed to record the temperature every hour on Saturday from 6 AM to midnight. At noon, he was taking lunch and forgot to record the temperature. At 8:00 PM, his favourite show came on and so forgot again. He recorded the data. So, collected on a graph sheet as shown below.

Describe the overall trend, or pattern, in the way the temperature changes over the time period shown on the graph.

Q. At

7 : 00

a.m., the temperature was

- 6^{o} F

. The temperature was

8^{o} F

higher at noon. Which one of the following expression can be used to calculate the temperature at noon ?

Question 63

Temperature of a place at 12:00 noon was $+ 5^{0} C$ . Temperature increased by $3^{0} C$ in first hour and decreased by $1^{0} C$ in the second hour. What was the temperature at 2:00 PM?

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At 12 PM, the temperature is 19∘C and at 8 PM, it is 10∘C.

At 12 PM, the temperature is $19^{\circ} C$ and at 8 PM, it is $10^{\circ} C$ .