Advertisements
Advertisements
प्रश्न
At a particular time, the length of the shadow of Qutub Minar whose height is 72 m is 80 m. What will be the height of an electric pole, the length of whose shadow at the same time is 1000 cm?
उत्तर
∵ Length of Qutub Minar = 72 m
And its shadow at particular time = 80 m
Length of shadow of electric pole = 1000 cm = 10 m ...`[∵ 1 cm = 1/100 m]`
∴ Length of electric pole = `72/80 xx 10` = 9 m
APPEARS IN
संबंधित प्रश्न
Find the constant of variation from the table given below:
x | 3 | 5 | 7 | 9 |
y | 12 | 20 | 28 | 36 |
Set up a table and solve the following problems. Use unitary method to verify the answer.
In which of the following table x and y vary inversely:
x | 9 | 24 | 15 | 3 |
y | 8 | 3 | 4 | 25 |
16 taps can fill a petrol tank in 18 minutes. The time taken for 9 taps to fill the same tank will be _________ minutes
It takes 60 days for 10 machines to dig a hole. Assuming that all machines work at the same speed, how long will it take 30 machines to dig the same hole?
Forty students stay in a hostel. They had food stock for 30 days. If the students are doubled then for how many days the stock will last?
Meena had enough money to send 8 parcels each weighing 500 grams through a courier service. What would be the weight of each parcel, if she has to send 40 parcels for the same money?
A flood relief camp has food stock by which 80 people can be benefited for 60 days. After 10 days 20 more people have joined the camp. Calculate the number of days of food shortage due to the addition of 20 more people?
Which quantities in the previous question vary inversely with each other?
If xy = 10, then x and y vary ______ with each other.
Two persons could fit new windows in house in 3 days.
How many persons would be needed to fit the windows in one day?