P sold an article to Q at a profit of 20%. Q sold the same article to R at a loss of 25%. R sold the same article to T at a profit of 50%. If P bought the article at ₹100, then at what price did T buy that article?

₹135

The cost price of the article for P = Rs. 100 (given)

Cost price of article for Q = 100 × 120% = Rs. 120

Cost price of article for R = 120 × (100 – 25)% = Rs. 90

Cost price of article for T = 90 × 150% = Rs. 135