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The average height of 5 boys is 175 cm. ...

The average height of 5 boys is 175 cm. A sixth boy joined the group and the average height of all the boys in the group now increased by one centimeter. The height of the sixth boy is:
5 लड़कों की औसत लंबाई 175 सेमी है | एक छठा लड़का समूह में शामिल हो जाता है तथा सभी लड़कों की औसत लंबाई एक सेमी से बढ़ जाती है | छठे लड़के की लंबाई कितनी होगी ?

A

180 cm

B

181 cm

C

179 cm

D

175 cm

Text Solution

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The correct Answer is:
B
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In a class, the number of girls is 60% more than that of boys. The average weight of the boys is 2.6 kg more than that of girls. If the average weight of all the boys and girls is 50 kg, then find the average weight ( in Kg. ) of girls. एक कक्षा में, लड़कियों की संख्या लड़कों की संख्या से 60% अधिक है | लड़कियों की तुलना में लड़कों का औसत वजन 2.6 kg अधिक है | यदि सभी लड़कों और लड़कियों का औसत वजन 50 kg है, तो लड़कियों का औसत वजन (kg में) कितना है ?

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GAGAN PRATAP -AVERAGE-Multiple Choice Questions
  1. In a class of 180 students, 45% are girls and the remaining are boys. ...

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  2. In a class of 60 students, 40% are girls. The average weight of the wh...

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  3. The average height of 5 boys is 175 cm. A sixth boy joined the group a...

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  4. The weight of 9 members out of 22 are measured consecutively and their...

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  5. A library lias an average of 265 visitors on Sundays and 130 visitors ...

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  6. In a class of 80 students, 60% participate in games and the rest do no...

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  7. The average score in Mathematics of 90 students of section A and B of ...

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  8. Given that the mean of five numbers is 28. If one of them is excluded ...

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  9. The average weight of 8 persons is increased by 2.5 kg. When one of th...

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  10. The average age of 25 men is 28 years. 5 new men of an average age of ...

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  11. The average salary of a person for the months of February, March, Apri...

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  12. The average of n numbers is 58. If each of 65% of the numbers is incre...

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  13. In AKGEC college in B.Tech.ECE branch there are three sections A, B an...

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  14. lf the average of 35 numbers is 22, the average of the first 17 number...

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  15. The average of 65 numbers is 137.8. The average of first 32 numbers is...

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  16. The average of 40 numbers is 36. The average of the first 25 numbers i...

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  17. The average of 83 results is 48.5. If the average of the first 59 resu...

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  18. The average of 60 student’s results is 38. If the average of the first...

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  19. The average of 33 numbers is 74. The average of the first 17 numbers i...

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  20. The average marks of 50 students in an examination was 65. It was late...

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