The subtraction below is in base seven. Find the missing number.

5 1 6 2_seven

-2 6 4 4_seven

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2 * 1 5

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• A. 2
• B. 3
• C. 4
• D. 5

The pie chart below shows the distribution of subjects offered by students in SSS III level. If 80 students enrolled in the class. What is the size of the angle of the sector in economics?

• A. 24°
• B. 39°
• C. 32°
• D. 36°

If \(p = \begin{pmatrix} 2 \\ -2 \end{pmatrix} \) and \(q = \begin{pmatrix} 3 \\ 4 \end{pmatrix}\), find \(|q - \frac{1}{2}p|\).

• A. \(2\sqrt{2}\)
• B. \(\sqrt{13}\)
• C. \(5\)
• D. \(\sqrt{29}\)

234 is to 342 as 987 is to ________ .

• a. 789
• b. 798
• c. 879
• d. 897

If 23_x = 32₅, find the value of x

• A. 7
• B. 6
• C. 5
• D. 4

Two balls are drawn, from a bag containing 3 red, 4 white and 5 black identical balls. Find the probability that they are all of the same colour.

• A. \(\frac{5}{33}\)
• B. \(\frac{13}{66}\)
• C. \(\frac{8}{53}\)
• D. \(\frac{19}{66}\)

Find the value of m if 13_m + 24_m = 41_m

• A. 8
• B. 6
• C. 5
• D. 2

How many numbers greater than 200 can be formed from the digits 1,2,3,4, 5 if no digit is to be repeated in any particular number?

• A. 50
• B. 60
• C. 288
• D. 300

The cumulative frequency curve below shows the distribution of the scores of 50 students in an examination. Find the 36th percentile scores?

• A. 18%
• B. 28%
• C. 36%
• D. 50%

The cost of kerosine per liter increase from N60 to N85. What is the percentage rate of increase?

• A. 42%
• B. 41%
• C. 40%
• D. 25%