HARD
7th Tamil Nadu Board
IMPORTANT
Earn 100

A printer, prints a book of 300 pages at the rate of 30 pages per minute. Then, how long will it take in minutes to print the same book if the speed of the printer is 25 pages per minute?

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Important Questions on Direct And Inverse Proportion

EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 5
If the cost of 6 cans of juice is ₹210, then what will be the cost of 4 cans of juice in rupees?
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 6
x varies inversely as twice of y. Given that when y=6, the value of x is 4. Find the value of x when y=8.
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 7
A truck requires 108 liters of diesel for covering a distance of 594 km. How much diesel in liters will be required to cover a distance of 1650 km?
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 8
If the cost of a dozen soaps is ₹ 396, what will be the cost of 35 such soaps in rupees?
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 9
In a school, there are 7 periods in a day each of 45 minutes duration. How long each period is in minutes, if the school has 9 periods a day assuming the number of hours to be the same?
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 10
Cost of 105 notebooks is ₹2415. How many notebooks can be bought for ₹1863?
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 11
10 farmers can plough a field in 21 days. Find the number of days reduced if 14 farmers ploughed the same field? 
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.3>Q 12
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?