Question
Determine the value of a − b given that a + 3b = 18a and 3a + b = 30 .
More Average Questions
- The average of 20 numbers is 35. The average of first 11 numbers is 38 and that of the last 11 numbers is 32. If 10th number and 11th numbers are excluded,...
- Average marks scored by each boy in a class were 70, whereas that by each girl were 90. If the number of boys in the class is 50% more than the number of g...
- The average of 12 consecutive even numbers is 41 . If the smallest 5 numbers are removed, what is the average of the remaining numbers?
- Average of 10 positive integers is calculated as 36. It was later found that while calculating the average, someone mistakenly entered 15 instead of 35. Fi...
- Find the median of the following observation:24, 28, 29, 21, 19, 18, 25, 27, 17, 20, 28, 30, 11, 13
- A college group of 50 students has an average age of 23 years. 10 new students are added and the average age decreases to 21. What is the average age of th...
- Average of four numbers is 24. Sum of smallest and largest number is 53. If difference between other two numbers is 1, then find the square of second small...
- The average of the first 7 non-zero multiples of 18 is:
- The average number of taxis of three colours (black, white and yellow) in a taxi stand is 144. The number of black taxis is 30 more than that of yellow tax...
- A group has certain number of people. If 2 people of average weight 64 kg left the group then the average weight of remaining people decreases by 1 kg. If ...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)