If the price of a ball point pen falls from N1 ... - JAMB Economics 1991 Question
If the price of a ball point pen falls from N1.00 to N0.60 and the quantity demanded increases from 200 to 300, the point elasticity of demand is equal to?
A
1.25
B
0.80
C
0.50
D
0.40
correct option: a
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