Question

. The price of certain item increased by X% per
week over two successive weeks. If at the
beginning, 2 kg was available for Rs. 80 and
after two weeks they were available for Rs.
105.80, what is value of X.​

Answer 1

Step-by-step explanation:

2 kgs = 80

1 kg = 40

after two weeks they were available for Rs.

after two weeks they were available for Rs.105.80,

2 weeks = 2 kg = 105.80

1 kg = 52.9

52.9-40 = 12.9rs

12.9/40 = 32.25% successive for 2 weeks

for 1 week = 15%