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प्रतिलोम त्रिकोणमिति फ़लन के गुणधर्म - 6|प्रतिलोम त्रिकोणमिति फ़लन के गुणधर्म - 7|प्रतिलोम त्रिकोणमिति फ़लन के गुणधर्म - 8|प्रतिलोम त्रिकोणमिति फ़लन के गुणधर्म - 9,10 और 11|प्रतिलोम त्रिकोणमिति फ़लन के गुणधर्म - 12,13 और 14

Ratio of the fares of First ,Second and Third class catogory of a train , between two stations is 10:7:2 and the ratio of passenger travelling in these category is 4:9:17 respectively .If the fare is increased by 1/4 in First class , 1/8 in second class and decreased by 10% i Third Class and the ratio of number of passenger in the category remains same .If the total amount received of Rs. 60590 , then find the total amount received from thrid class category .

Class 10 Maths (Hindi) | Chapter 8 | त्रिकोणमिति का परिचय | Important Questions and Quick Revision

The number of students in classes A and B are 60 and 70, respectively. The average score in mathematics of students in B is 57 and that of all students in A and B is 63. What is the average score of students in A? कक्षा A और B में छात्रों की संख्या क्रमश: 60 और 10 है | B में गणित में छात्रों का औसत अंक 57 तथा A और B के सभी छात्रों का गणित में औसत अंक 63 है |A के छात्रों का औसत अंक ज्ञात करें |

The total number of students in section A and B of a class is 110. The number of students in section A is 10 more than that of section B. The average score of the students in B, in a test, is 20% more than that of students in A. If the average score of all the students in the class is 72, then what is the average score of the students in A? किसी कक्षा के खंड A और खंड B के छात्रों की कुल संख्या 110 है | खंड A में छात्रों की संख्या खंड 9 के छात्रों की संख्या से 10 अधिक है| किसी परीक्षा में B के छात्रों का औसत प्राप्तंक A के छात्रों के औसत प्राप्तंक से 20% अधिक है | यदि सभी छात्रों का औसत प्राप्तांक 72 है, तो A के छात्रों का औसत प्राप्तांक ज्ञात करें |

Between two railway station the ratio of fare of 1^(st) and 2^(nd) class was 10:7 and later on the fare is increased in the ratio 3 : 4 and 5: 9 respectively. If the ratio of no. of passengers of both tier is 3 : 5 and total fare is Rs 30900 then find the total fare of 2^(nd) tier.

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k s"N u m b e r o f S t u d e n t s"0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a freque