PPSC Personal Assistant & Assistant (BPS-16) S & GAD-2020, Everyday Science MCQs, PPSC Solved Past Papers MCQsWhich among the following is alternative source of energy?A. Hydel B. Nuclear C. Thermal D. Biogas A trade mixes 26 kg of rice at Rs.20 per kg with 30 kg of rice of other variety at Rs.36 per Kg and sells mixture at Rs. 30 per kg this profit percent is?If a person left a $10.47 tip on a breakfast that cost $87.25 what percentage was the tip?
