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Sum of the 5th and 9th term of an A P is 30. If its 25th term is three times its 8th term find A. P.
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June 26, 2017
Class 10 - Mathematics
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Find how many natural numbers are there between 101 and 999 which are divisible by both 2 and 5.
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June 26, 2017
Class 10 - Mathematics
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If Sn denotes the sum of first n terms of an A.P., prove that $${S_{12}} = 3left( {{S_8} – {S_4}} right)$$ .
41 views
doubts
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June 26, 2017
Class 10 - Mathematics
0
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Sum of the first nth terms of an A.P. is $$5{n^2} – 3$$ .Find the $${n^{th}}$$ term of A.P. and hence find its 12th term.
29 views
doubts
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June 26, 2017
Class 10 - Mathematics
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In a school, students thought of planting trees in and around the school to reduce air pollution. It was decided that the number of trees, that each section of class will plant, will be the same as the class in which they are studying, e.g., a section of each class 1 will plant 1 tree, a section of class 2 will plant 2 trees and so on till class 12. There are3 sections of each class. How many trees will be planted by the students?
32 views
doubts
asked
June 26, 2017
Class 10 - Mathematics
0
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What are the different ways of increasing production on the same piece of land?
19 views
doubts
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June 26, 2017
0
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What are the disadvantages of modern farming over traditional farming?
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doubts
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June 26, 2017
0
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What do you understand by green revolution and what are its effects on land?
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doubts
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June 26, 2017
0
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How did spread of electricity help farmers in Palampur?
18 views
doubts
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June 26, 2017
0
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What are the different methods of modern farming?
25 views
doubts
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June 26, 2017
0
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What is the difference between farmers and farm labourers?
21 views
doubts
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June 26, 2017
0
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What are the disadvantages of using chemical fertilizers?
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doubts
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June 26, 2017
0
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What is the difference between working and fixed capital?
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doubts
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June 26, 2017
0
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What is Social Exclusion?
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June 26, 2017
0
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Why is poverty a “multi-dimensional problem?
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doubts
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June 26, 2017
0
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What are the features of poor people?
24 views
doubts
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June 26, 2017
0
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Why do different countries use different poverty lines?
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doubts
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June 26, 2017
0
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What is absolute and relative poverty?
21 views
doubts
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June 26, 2017
0
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How poverty line can be reduced in India?
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June 26, 2017
0
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What are the vulnerable groups of poverty?
21 views
doubts
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June 26, 2017
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