If the mean of is , find the value o...

If the mean of is , find the value of

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There are n arithmetic means between 9 and 27 . If the ratio of the last mean to the first mean is 2:1, find the value of n.

n' arithmetic means are there between 4 and 36. If the ratio of 3rd and (n-2)th mean is 2:3, find the value of n.

There are 'n' A.M.'s between 2 and 41. The ratio of 4th and (n - 1)th mean is 2 : 5, find the value of n.

The mean of 12 values of a data is calculated as 19.25. If one more value is included in the data, then for the 13 values of the new data the mean becomes 20. Find the value of 13th observation.

The total number of observations in the following distribution table is 120 and their mean is 50. Find the value of missing frequencies f_(1) and f_(2) :

There are n A.M.s between 3 and 17. The ratio of the last mean to the first mean is 3:1. Find the value of n.

If n arithemetic means are inserted between 20 and 80 such tht the ratio of first mean to the last mean is 1:3, then find the value of n

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RD SHARMA-DATA HANDLING 2-All Questions

The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, ...
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The heights of 10 girls were measured in cm and the results are as ...
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If the mean of is , find the value of
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If the mean of 6 4 7 p and 10 is 8 Find the value of p.
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The mean of 10 numbers is 20. If 5 is subtracted from every number, ...
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The mean of 16 numbers is 8. If 2 is added to every number, what will ...
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If the mean of five observation x , x+2, x+4x+6, x+8 is 11, find the m...
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The mean of 40 observation was 160. It was detected on re-checking tha...
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Following table shows the points of each player scored in four games ...
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Ashish studies for 4 hours, 5 hours and 3 hours respectively on thr...
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A cricketer scores the following runs in eight innings: 58, 76, 40,...
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The marks (out of 100) obtained by a group of students in a science...
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The enrolment in a school during six consecutive years was as follo...
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The rainfall (in mm) in a city on 7 days of a certain week was reco...
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If the heights of 5 persons are 140 cm, 150 cm, 152 cm, 158 cm and ...
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Find the mean of 994, 996, 998, 1002 and 1000
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Find the mean of first five natural numbers.
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Find the mean of all factors of 10.
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Find the mean of first 10 even natural numbers.
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Find the mean of x ,\ x+2,\ x+4,\ x+6,\ x+8
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