At a clearance sale Ishita buys a shirt marked ₹800 at 40% off and a pair of jeans marked ₹1200 at 10% off. Reckoned on the two marked prices together, the discount she has received is what percent?

She pays $800\times 0.60$ = ₹480 and $1200\times 0.90$ = ₹1080, i.e. ₹1560 against marked prices totalling ₹2000. The discount is ₹440 on ₹2000 = 22%. (Averaging the two rates as $(40+10)/2=25$% would only be right if the two garments were marked at the same price; here the bigger discount sits on the smaller ticket, so the overall rate is pulled below 25%.)