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If m = 3, p = -3, q = 7 and r = \(\frac{5}{2}\), evaluate...

Mathematics
JAMB 2005

If m = 3, p = -3, q = 7 and r = \(\frac{5}{2}\), evaluate m(p+q+r)

  • A. 19.50
  • B. 19.15
  • C. 18.95
  • D. 18.05
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Correct Answer: Option A
Explanation

m = 3, p = -3, q = 7 and r = \(\frac{5}{2}\)
m(p+q+r) = 3(-3 + 7 + \(\frac{5}{2}\))
= 3(4 + \(\frac{5}{2}\))
= 3(4 + 2\(\frac{1}{2}\))
= 3 * 6\(\frac{1}{2}\)
= 3 * \(\frac{13}{2}\)
= \(\frac{39}{2}\)
= 19.50

There is an explanation video available below.


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Explanation Video

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