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प्रश्न
Following number line shows the temperature in degree celsius (°C) at different places on a particular day.
What is the temperature difference between Lahulspiti and Srinagar?
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उत्तर
Temperature at Lahulspiti = −8°C
Temperature at Srinagar = −2°C
Temperature difference = −2°C − (−8°C)
= 6°C
Therefore, the temperature difference between Lahulspiti and Srinagar is 6ºC
संबंधित प्रश्न
A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the ninth step.
1) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level?
2) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step?
3) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following; (a) − 3 + 2 − … = − 8 (b) 4 − 2 + … = 8. In (a) the sum (− 8) represents going down by eight steps. So, what will the sum 8 in (b) represent?
Write the number in the following example using the proper signs.
A kite is flying at a distance of 120 metres from the ground.
Add: 5 + (–6)
Find the value of: |15|
Find an integer a such that: −8 + a = 0
Simplify: 43 × (–33) + 43 × (–17)
Write 'T' for true and 'F' for false for the following:
0 is neither positive nor negative.
Zero is neither positive nor negative.
Fill in the blank using <, = or > :
0 ______ 1
An atom changes to a charged particle called ion if it loses or gains electrons. The charge on an ion is the charge on electrons plus charge on protons. Now, write the missing information in the table given below:
| Name of Ion | Proton Charge | Electron Charge | Ion Charge |
| Hydroxide ion | +9 | – | –1 |
| Sodium ion | +11 | – | +1 |
| Aluminium ion | +13 | –10 | – |
| Oxide ion | +8 | –10 | – |
