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Learn NAVY MCQs with answers [Page 1 of Department 97]

P

Parvesh Kanani • 2.84K Points
Extraordinary 

1) The average of 11 results is 50. If the average of the first six results is 49 and that of the last six is 52, the sixth no. is

(A) 48
(B) 50
(C) 52
(D) 56
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Correct Answer - Option (D)

Explanation :
Here , Sum of 11 results = 50 × 11 = 550 Sum of the first six results = 49 × 6 = 294 and Sum of the last six results = 52 × 6 = 312 ∴ Sixth result = Sum of the first six results + Sum of the last six results – Sum of 11 results Sixth result = 294 + 312 – 550 = 56

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P

Parvesh Kanani • 2.84K Points
Extraordinary 

2) The average of 30 numbers is 12. The average of the first 20 of them is 11 and that of the next 9 is 10. The last number is

(A) 60
(B) 45
(C) 40
(D) 50
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Correct Answer - Option (D)

Explanation :
Given , Sum of 30 numbers = 30 × 12 = 360 Sum of the first 20 numbers = 20 × 11 = 220 and Sum of the next 9 numbers = 9 × 10 = 90 ∴ Last number = Sum of 30 numbers – Sum of the first 20 numbers – Sum of the next 9 numbers Last number = 360 – 220 – 90 Last number = 360 – 310 = 50

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D

Deepak Sahoo • 10.60K Points
Tutor II 

3) Select the word which has same relation: 
Butter : Milk :: Book : ?

(A) Author
(B) Printing
(C) Chapter
(D) Paper
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Correct Answer - Option (D)

Explanation :
Second is used to prepare the first.

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T

Tina Singh • 10.59K Points
Tutor II 

4) Backup of data files helps to prevent

(A) loss of confidentiality
(B) loss of data
(C) visrus infection
(D) duplication of data
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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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T

Tina Singh • 10.59K Points
Tutor II 

7) PDF stands for

(A) Presentation document format
(B) portable document format
(C) public document format
(D) powerfull document format
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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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T

Tina Singh • 10.59K Points
Tutor II 

9) The correct order of common data elements from smallest to largest

(A) file, character, field, record, database
(B) database, file, record, field, character
(C) record, charcter, file, database, fiels
(D) charcter, field, record, file, database
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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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You are learning MCQ Questions of NAVY Department : 97 | Page : 1

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