Question
A substitution cipher substitutes one symbol
withSolution
A substitution cipher substitutes one symbol with Keys
The average of three numbers is 21. The first number is double the second, and the third number is double the first. Calculate the sum of the first and ...
The annual production of an article fluctuates. It consistently rises by 25% for two consecutive years, followed by a 20% decline in the third year. In ...
- Rs. 5600 is divided among 'X', 'Y', 'Z', and 'W' in the ratio 4:6:3:7. Then, 'Y' gives 60% of the average of 'X' and 'W’s' amount to 'Z'. Find the averag...
The average salary of 6 workers is (x + 5). If the average salary of the first three workers is ₹10,000 and that of the last three workers is ₹14,00...
The average salary of all males and females in an office is Rs.16000 and the total number of females in the office is 16. If the average salaries of mal...
The average weight of 8 people is 75 kg. When three new people with their weights in the ratio 3:4:5 joined the group, the average weight of all the peo...
The average of 6 numbers is 25. The sum of the first 5 numbers is 110. What is the 6th number ?
- Average of first 3 numbers is half the average of next 6 numbers. If the average of all 9 numbers is 15, find the sum of the last 6 numbers.
The average age of 30 students in a class is 18 years. The average age of another 20 students is 22 years. Find the average age of all the 50 students t...
The average marks obtained by 6 students in a class is 60. If the topper leaves, the average drops to 55. Find the marks of the topper.
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