The months of the calendar have been coded in the following ways:January = 2381February = 1992March = 2663April = 1464May = 2645June = 2356July = 2357August = 1478Can you find how to code December ?
F21, S23, T25, T27, S29, M31, __?
The average of family containing 6 members is 22.The youngest member age is 7.What is the average of family at his birth?
A vessel contains milk with 90% pure milk. A part of it is drunk by the maid of the house and replaced with water. The resultant mixture has only 75% pure milk. How much did the maid drink?