Nigerian Defence Academy Interview Questions

The average of 9 observations was 9, that of the 1st of 5 being 10 and that of the last 5 being 8. What was the 5th observation?
A. 9
B. 10
C. 11
D. 12

167 viewsAdmin Changed status to publish November 17, 2021Aptitude Averages

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A man owns 2/3 of a computer service buroue business and sells 3/4 of his share for $75000.What is the value of the business?

455 viewsAptitude

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If you won a Rs.10-crore lottery, would you still work?

527 viewsHR

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What is the probability of getting a sum 9 from two throws of a dice?
A. 1/5
B. 1/7
C. 1/9
D. 1/3

216 viewsAdmin Changed status to publish January 3, 2022Aptitude Probability

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If “basis points” are defined so that 1 percent is equal to100 basis points, then 75.5 percent is how many basis pointsgreater than 65.5 percent?

175 viewsGeneral Aptitude

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In terms of percentage profit, which among following the best transaction.
A. C.P. 60, Profit 29
B. C.P. 90, Profit 18
C. C.P. 36, Profit 17
D. C.P. 15, Profit 19

220 viewsAdmin Changed status to publish November 23, 2021Aptitude Profit and Loss

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“How many basketballs would fit in this room?”

223 viewsAptitude

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A student scored an average of 80 marks in 3 subjects: Physics, Chemistry and Mathematics. If the average marks in Physics and Mathematics is 90 and that in Physics and Chemistry is 70, what are the marks in Physics?

150 viewsAptitude

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Assume that passwords are selected from four-character combinations of 26 alphabetic characters. Assume that an adversary is able to attempt passwords at a rate of one persecond.a) Assuming no feedback to the adversary until each attempt has been completed, what is the expected time to discover the correct password?

119 viewsAptitude

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For any acute angle, sine A is equal to
A. sin (2A - 180°)
B. sin (180° + A)
C. sin (180° - A)
D. sin (90° - A)

361 viewsAdmin Changed status to publish January 1, 2022Aptitude Trigonometry

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A computer printer produced 176,400 lines in a given day. If the printer was in operation for seven hours during the day, how many lines did it print per minute?

212 viewsGeneral Aptitude

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Which of the following fractions is less than 1/3(a) 22/62 (b) 15/46(c) 2/3(d) 1

201 viewsAptitude

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Find the values of each of the alphabets.
N O O N
S O O N
+ M O O N
----------
J U N E

206 viewsGeneral Aptitude

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If √(75.24 + N ) = 8.71, then the value of N is ?
A. .6241
B. .5241
C. .4241
D. .3241

621 viewsAdmin Changed status to publish November 23, 2021Aptitude Square root and Cube root

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If one third of 3/4 of a number is 21. Then find the number?
A. 64
B. 74
C. 84
D. 94

512 viewsAdmin Changed status to publish November 23, 2021Aptitude Problems on Numbers

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