Answer:
0.75
Step-by-step explanation:
The cross price elasticity measures how a change in price of one good affects the quantity demanded of another good
Cross price elasticity = percentage change in quantity demanded of pens / percentage change in the price of pencils
percentage change in quantity demanded of good A = (150 -100) / 100 = 0.5 = 50%
percentage change in the price of good B = (2.50 - 1.50) / 1.50 = 0.67 = 67 %
Cross price elasticity = 50% / 67% = 0.75
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