Four oranges sell for Nx and three mangoes sell for Ny. Olu bought 24 oranges
MATHEMATICS
WAEC 2013
Four oranges sell for Nx and three mangoes sell for Ny. Olu bought 24 oranges and 12 mangoes. How much did he pay in terms of x and y?
- A. N94x + 6y)
- B. N(6x + 4y)
- C. N(24x + 12y)
- D. N(12x + 24y)
Correct Answer: B. N(6x + 4y)
Explanation
4 oranges sell for Nx, 1 orange will sell for \(\frac{Nx}{4}\)
24 oranges will sell for: \(\frac{Nx}{4} \times 24\) = n6x
3 mangoes sell for Ny, 1 mango will sell for \(\frac{Ny}{3}\)
12 mangoes will sell for \(\frac{Ny}{3} \times 12\) = 4Ny
total money pay N6x + N4y = N(6x + 4y)
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