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Subtract '1' from each digit of the given number. For '634', 6 - 1 = 5, 3 - 1 = 2, 4 - 1 = 3 So, '634' is related to '523'. For '986': 9 - 1 = 8, 8 - 1 = 7, 6 - 1 = 5 So, '986' is related to '875' Similarly, for '399': 3 - 1 = 2, 9 - 1 = 8, 9 - 1 = 8 So, '399’ is related to '288'.
The average expenditure of a man for the first 5 month is Rs.4000 and for the next 7 months is Rs.6000. If he saves 10000 in that year then find his ave...
The average of 12, 33, and x is 25. What is the value of x?
The average age of 32 children and their teacher's age are 28 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
Average 20 numbers is ‘x’. If the average of first 12 numbers is 62.5 while average of last 5 numbers is 74.8 and 13th, 14th a...
The combined average weight of 8 copies and 5 books is 150 grams. If the average weight of the copies is 180 grams, find the average weight of the books.
Average of 8 numbers is 50. If average of first four and last two numbers is 60 and 70, respectively then find the fifth number given that ratio of fift...
The average of 25 values is 62. The average of the first 13 values is 60, and the average of the last 13 values is 65. If the 13th value is excluded, fi...
Average of 20 numbers is 90. Average of first 8 numbers is 92 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numbe...
2040, 600, 240, 150, ?, 121.875
