There are two buildings P and Q. If 75 persons are sent from P to Q, then the number of persons in each building is the same. If 105 persons are sent from Q to P, then the number of persons in P is double the number of persons in Q. How many persons are there in building P?
Mean x = Sum of nos. / Count of numbers = 1111/11 = 101
Median y = Middle term when number are arranged in ascending order = 104
Mode z = Number which is present maximum number of times = 91
2x^2 + 4zy + 3z^2 = 2* (101)^2 + 4*91*104 + 3*(91)^2 = 83101
Jaadu went to buy a chocolate worth Rs. x. He gave Rs.20 rupee note to the shopkeeper to buy the chocolate then shopkeeper gave rest of the money in the denominations of 50 paise, 2 rupee, and 5 rupees. If the ratio of the number of coins is 5:2:1 respectively. Then what is the price of the chocolate?