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Waec Further Mathematics Past Questions and Answers

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Waec Further Mathematics Past Questions

Question 306:


A particle of mass 2.5 kg is moving at a speed of 12 m/s. If a force of magnitude 10 N acts against it, find how long it takes to come to rest.

A. 1.5 s
B. 3.0 s
C. 4.0 s
D. 6.0 s


Question 307:


Express \(r = (12, 210°)\) in the form \(a i + b j\).

A. \(6(-i + \sqrt{3} j)\)
B. \(6(-\sqrt{3} i - j)\)
C. \(6(i - \sqrt{3} j)\)
D. \(6(i + \sqrt{3} j)\)


Question 308:


Age(in years) 1 - 5 6 - 10 11 - 15
Frequency 3 5 2



Calculate the standard deviation of the distribution.

A. 1.10
B. 2.36
C. 3.50
D. 7.50


Question 309:


A test consists of 12 questions out of which candidates are to answer 10. If the first 6 are compulsory, in how many ways can each candidate select her questions?

A. 40
B. 25
C. 15
D. 10


Question 310:


In a firing contest, the probabilities that Kojo and Kwame hit the target are \(\frac{2}{5}\) and \(\frac{1}{3}\) respectively. What is the probability that none of them hit the target?

A. \(\frac{1}{5}\)
B. \(\frac{2}{5}\)
C. \(\frac{3}{5}\)
D. \(\frac{4}{5}\)






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