For the following questions answer them individually
E is the daughter of P who is the husband of the only daughter-in-law of K? How is E related to K?
A trader bought a bag of 40 kg of basmati rice at Rs. 125 per kg and another bag of 60 kg at Rs. 150 per kg. He sold the entire stock at a profit of 20%. Find the selling price per kg.
The mean of 25 values was 40. But one value was written as 25 instead of 50. The corrected mean is