Solution:Let cost price of the chair is Rs.100x
Marked price of the chair = 1.80 × 100x = Rs. 180x
Selling price of the chair = 0.88 × 180x = Rs. 158.4x
According to question,
1.80 × (100x − 50) = 158.4x + 72
Or, 180x − 90 = 158.4x + 72
Or, 21.6x = 162
Or, x = 7.5
Cost price of the chair = 7.5 × 100 = Rs. 750
For option ‘a’:
Profit = 2000 − 1350 = Rs. 650
So, option ‘a’ can’t be the answer.
For option ‘b’:
Marked price of the bottle = 675/0.75 = Rs. 900
Cost price of the bottle = 900/1.2 = Rs. 750
So, option ‘b’ can be the answer.
For option ‘c’:
Cost price of the object = 840/1.12 = Rs. 750
So, option ‘c’ can be the answer.
Hence, option e.