MEDIUM
7th Tamil Nadu Board
IMPORTANT
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The weight of 72 books is 9 kg. What is the weight of 40 such books? (using unitary method). Express your answer in kg.

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Important Questions on Direct And Inverse Proportion

MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 10
Thamarai pays ₹7500 as rent for 3 months. With the same rate how much does she have to pay for 1 year? (using unitary method). Express your answer in ₹.
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 11
If 30 men can reap a field in 15 days, then in how many days can 20 men reap the same field? (use unitary method).
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 12
Valli purchases 10 pens for ₹180 and Kamala buys 8 pens for ₹96. Can you say who bought the pen cheaper? (use unitary method). Mention the name of person as your answer.
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 13
A motorbike requires 2 litres of petrol to cover 100 kilometers. How many litres of petrol will be required to cover 250 kilometers? (use unitary method). Express your answer in litres.
MEDIUM
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 14
If the cost of 3 books is ₹ 90, then find the cost of 12 books. 
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 15
If Mani buys 5 kg of potatoes for₹ 75, then he can buy how much kg of potatoes for ₹ 105.
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 16
35 cycles were produced in 5 days by a company, then how many cycles will be produced in 21 days?
EASY
7th Tamil Nadu Board
IMPORTANT
Mathematics Standard 7 Term I>Chapter 4 - Direct And Inverse Proportion>Exercise 4.1>Q 17
An aircraft can accommodate 280 people in 2 trips. How many trips are required to take 1400 people.