46,47,48,49.....अनुक्रमकी अगलीसंख्या क्या होगी ? | CLASS 14 | संख्या श्रेणी | MATHS | Doubtnut

The average of 16 numbers is 48. The average of the first 7 numbers is 45 and the average of the next 6 numbers is 52. If the 14th number is 11 less than the 15th number and is 5 more than the 16th number, then the average of the 15th and 16th number is: 16 संख्याओं का औसत 48 है | पहली 7 संख्याओं का औसत 45 तथा अगली 6 संख्याओं का औसत 52 है | यदि 14वीं संख्या 15वीं संख्या से 11 कम तथा 16वीं संख्या से 5 अधिक है, तो 15वीं एवं 16वीं संख्या का औसत क्या होगा ?

Two sections of class IX having 27 students in each section appeared for Mathematics olympiad. The marks obtained by them are shown below. 46, 31, 74, 68, 42, 54, 14, 61, 48, 37, 26, 8, 64, 57, 93, 72, 53, 59, 38, 16, 88, 56, 46, 66, 45, 61, 54, 27, 27, 44, 63, 58, 43, 81, 64, 36, 49, 50, 76, 38, 47, 77, 62, 53, 40, 71, 60, 45, 42, 34, 46, 40, 59, 42 One student is selected at random. Find the probability that selected student is having marks more than 49.

Time taken is seconds by 25 students in an examination to solve certain question is given below. 20,16,20,27,28,30,33,57,50,40,42,46,28,43,46,46,48,49,52,58,59,60,64,52. By taking class interval of size 10, make a frequency distribution table.

Directions (Questions 1 to 5): Study the given table carefully and answer the questions that follow: Number of candidates appeared and qualified for a test (in hundreds) in 6 different years from 5 different zones. Year P Q R S T App. Qual. App. Qual. App. Qual. App. Qual. App. Qual. 2005 3.2 2.5 3.5 1.4 3.8 2.2 4.2 2.4 6.2 2.6 2006 4.6 3.4 6.9 4.2 6.9 4.4 7.4 3.3 6.2 4.8 2007 6.5 4.9 7.7 4.5 5.9 4.8 8.3 5.6 6.4 4.2 2008 7.4 5.7 5.4 3.4 7.2 3.2 9.3 6.4 7.8 6.2 2009 8.8 4.8 6.6 5.2 8.6 6.8 11.4 5.2 9.9 6.9 2010 9.2 5.6 10.6 6.4 10.3 7.4 14.2 11.4 11.8 9.4 Note: Here App. means Appeared and Qual. means Qualified. In which years was in zones the difference between the appeared candidates and qualified candidates the second lowest? (a) 2005 (b) 2007 (c) 2008 (d) 2009 (e) 2010

Directions (Questions 11 to 15): Study the following table carefully and answer the questions given below: Number (N) of Candidates (In lakhs) Appearing For An Entrance Examination From Six Different States And The Percentage (P) of Candidates Clearing the Same Over the Years STATE -> A B C D E F YEAR darr N P N P N P N P N P N P 2004 1.23 42 1.04 51 1.11 32 1.32 24 1.23 36 1.33 31 2005 1.05 43 1.12 62 1.07 47 1.15 49 1.18 55 1.24 24 2006 2.04 38 1.48 32 1.08 28 1.96 35 1.42 49 1.58 26 2007 1.98 41 2.07 43 1.19 30 1.88 46 1.36 47 1.79 29 2008 1.66 53 1.81 50 1.56 42 1.83 60 1.73 57 1.86 34 2009 1.57 39 1.73 36 1.64 52 2.01 56 1.69 55 1.95 37 What is the ratio of the total number of candidates clearing the entrance examination from State B in the year 2004 to that of those clearing the entrance examination from State C in the same year? (a) 221 : 148 (b) 218 : 143 (c) 148 : 221 (d) 143 : 218 (e) None of these