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Chapters
2: Multiplication and Division of Integers
3: HCF and LCM
4: Angles and Pairs of Angles
5: Operations on Rational Numbers
6: Indices
7: Joint Bar Graph
8: Algebraic Expressions and Operations on Them
▶ 9: Direct Proportion and Inverse Proportion
10: Banks and Simple Interest
11: Circle
12: Perimeter and Area
13: Pythagoras’ Theorem
14: Algebraic Formulae - Expansion of Squares
15: Statistics
16: Miscellaneous Problems : Set 1
17: Miscellaneous Problems : Set 2
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Solutions for Chapter 9: Direct Proportion and Inverse Proportion
Below listed, you can find solutions for Chapter 9 of Maharashtra State Board Balbharati for Mathematics [English] 7 Standard Maharashtra State Board.
Balbharati solutions for Mathematics [English] 7 Standard Maharashtra State Board 9 Direct Proportion and Inverse Proportion Practice Set 37 [Page 64]
If 7 kg onions cost 140 rupees, how much must we pay for 12 kg onions?
If 600 rupees buy 15 bunches of feed, how many will 1280 rupees buy?
For 9 cows, 13 kg 500 g of food supplements are required every day. In the same proportion, how much will be needed for 12 cows?
The cost of 12 quintals of soyabean is 36,000 rupees. How much will 8 quintals cost?
Two mobiles cost 16,000 rupees. How much money will be required to buy 13 such mobiles?
Balbharati solutions for Mathematics [English] 7 Standard Maharashtra State Board 9 Direct Proportion and Inverse Proportion Practice Set 38 [Page 66]
Five workers take 12 days to weed a field. How many days would 6 workers take? How many would 15 take?
Mohanrao took 10 days to finish a book, reading 40 pages every day. How many pages must be read in a day to finish it in 8 days?
Mary cycles at 6 km per hour. How long will she take to reach her Aunt’s house which is 12 km away? If she cycles at a speed of 4 km/hr, how long would she take?
The stock of grain in a government warehouse lasts 30 days for 4000 people. How many days will it last for 6000 people?
Balbharati solutions for Mathematics [English] 7 Standard Maharashtra State Board 9 Direct Proportion and Inverse Proportion Practice Set 39 [Page 68]
Suresh and Ramesh together invested 144000 rupees in the ratio 4:5 and bought a plot of land. After some years they sold it at a profit of 20%. What is the profit each of them got?
Virat and Samrat together invested 50000 and 120000 rupees to start a business. They suffered a loss of 20%. How much loss did each of them incur?
Shweta, Piyush, and Nachiket together invested 80000 rupees and started a business of selling sheets and towels from Solapur. Shweta’s share of the capital was 30000 rupees and Piyush’s 12000. At the end of the year, they had made a profit of 24%. What was Nachiket’s investment and what was his share of the profit?
A and B shared a profit of 24500 rupees in the proportion 3:7. Each of them gave 2% of his share of the profit to the Soldiers’ Welfare Fund. What was the actual amount given to the Fund by each of them?
Jaya, Seema, Nikhil, and Neelesh put in altogether 360000 rupees to form a partnership, with their investments being in the proportion 3:4:7:6. What was Jaya’s actual share in the capital? They made a profit of 12%. How much profit did Nikhil make?
Solutions for 9: Direct Proportion and Inverse Proportion
Balbharati solutions for Mathematics [English] 7 Standard Maharashtra State Board chapter 9 - Direct Proportion and Inverse Proportion
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Concepts covered in Mathematics [English] 7 Standard Maharashtra State Board chapter 9 Direct Proportion and Inverse Proportion are Concept of Direct Proportion, Concept of Inverse Proportion, Partnership, Variations.
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