Advertisements
Advertisements
प्रश्न
The following is the time-distance graph of Sneha’s walking.
- When does Sneha make the least progress? Explain your reasoning.
- Find her average speed in km/hour.
Advertisements
उत्तर
a. Sneha made least progress between 25 min to 40 min.
Observing the graph carefully, we see that initially, she is travelling approximately 0.5 km in 10 min, 0.25 km in 5 min, till the first 25 min. But after 25 min, her speed decreased as she travelled 0.25 km in 15 min (between 25 min to 40 min).
b. Average speed = `"Total distance travelled"/"Time"`
= `2/(55/60)`
= `2/55 xx 60`
= 2.18 km/h
APPEARS IN
संबंधित प्रश्न
Plot the following points on a graph sheet. Verify if they lie on a line
P(1, 1), Q(2, 2), R(3, 3), S(4, 4)
The y-coordinate of the point (2, 4) is ______.
In the point (2, 3), 3 denotes the y-coordinate.
Plot the given points on a graph sheet.
- (5, 4)
- (2, 0)
- (3, 1)
- (0, 4)
- (4, 5)
Write the y-coordinate (ordinate) of the given point.
(3, 5)
Find the coordinates of the vertices of the given figures.
The following table gives the growth chart of a child.
| Height (in cm) | 75 | 90 | 110 | 120 | 130 |
| Age (in years) | 2 | 4 | 6 | 8 | 10 |
Draw a line graph for the table and answer the questions that follow.
- What is the height at the age of 5 years?
- How much taller was the child at the age of 10 than at the age of 6?
- Between which two consecutive periods did the child grow more faster?
Sonal and Anmol made a sequence of tile designs from square white tiles surrounding one square purple tile. The purple tiles come in many sizes. Three of the designs are shown below.
(a) Copy and complete the table
| Side Length of Purple Titles | 1 | 2 | 3 | 4 | 5 | 10 | 100 |
| Number of white Tiles in Border |
 |
 |
 |
(b) Draw a graph using the first five pairs of numbers in your table.
(c) Do the points lie on a line?
