A car painter charges N40.00 per day for himself and N10.00 per day for his...

JAMB 1990

A car painter charges N40.00 per day for himself and N10.00 per day for his assistant. if a fleet of cars were painted for N2000.00 and the painter worked 10days more than his assistant, how much did the assistant receive?

A. N32.00
B. N320.00
C. N420.00
D. N1680.00

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Correct Answer: Option B

Explanation

Let his assistant work for x days

∴ his master worked (x + 10) day. Amount received by master = 40(x + 10),

amount got by his assistance = 10x

Total amount collected = N2000.00

∴ 40(x + 10) + 10x = 2000

= 40x + 400 + 10x

= 2000

50x + 400 = 2000

50x = 2000 - 400

50x = 1600

x = \(\frac{1600}{50}\)

x = 32 days

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