Advertisements
Advertisements
प्रश्न
A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time the length of the shadow cast by another pole 10 m 50 cm high.
Advertisements
उत्तर
Let the length of the shadow of the other pole be x m.
1 m = 100 cm
The given information, in the form of a table, is as follows:
Given, length of shadow of 5 m 60 cm high vertical pole = 3 m 20 cm
We know that 5 m 60 cm = 5 × 100 + 60
= 500 + 60
= 560 cm
3 m 20 cm = 3 × 100 + 20
= 300 + 20
= 320 cm
Length of second pillar = 10 m 50 cm
= 10 × 100 + 50
= 1000 + 50
= 1050 cm
Let the length of the shadow of the pillar = x
ratio of both
Then `560/320 = 1050/x`
on multiplying thunderbolts
560 × x = 1050 × 320
`x = (1050×320)/560`
x = 600
Hence, length of shadow of the pillar = 600 cm = 6 m
APPEARS IN
संबंधित प्रश्न
Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?
Fill in the blank in of the following so as to make the statement true:
If u = 3 v, then u and v vary .... with each other.
A worker is paid Rs 210 for 6 days work. If his total income of the month is Rs 875, for how many days did he work?
A woker is paid Rs 200 for 8 days work. If he works for 20 days, how much will he get?
A and B can finish a work in 20 days. A alone can do \[\frac{1}{5}\] th of the work in 12 days. In how many days can B alone do it?
If 7 m cloth costs ₹ 294, then the cost of 5 m of cloth is ________
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The quantity of rice and its cost.
Work with a partner to write at least five ratio statements about this quilt, which has white, blue, and purple squares.
How many squares of each colour will be there in 12 such quilts?
Shabnam takes 20 minutes to reach her school if she goes at a speed of 6 km/h. If she wants to reach school in 24 minutes, what should be her speed?
The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas.
| Litres of gas | 1 | 0.5 | 2 | 2.5 | 3 | 5 |
| Distance (km) | 15 | 7.5 | 30 | 37.5 | 45 | 75 |
Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of gas?
