Answer:
The price of a U.S. postage stamp has increased approximately 63% in terms of Indian rupees and 10% in terms of Chinese yuan.
Step-by-step explanation:
the exchange rate between the US dollar and the Indian rupee:
April 2011 = 45.54 Indian rupees per dollar x $0.41 = 18.67 Indian rupees
April 2016 = 66.16 Indian rupees per dollar x $0.46 = 30.43 Indian rupees
change in Indian rupees = (30.43 - 18.67) / 18.67 = 63%
the exchange rate between the US dollar and the Chinese yuan:
April 2011 = 6.61 Chinese yuan per dollar x $0.41 = 2.71 Chinese yuan
April 2016 = 6.48 Chinese yuan per dollar x $0.46 = 2.98 Chinese yuan
change in Chinese yuan = (2.98 - 2.71) / 2.71 = 10%