Question
The average number of books on Biology, Chemistry, and Physics in a book shop is 300. Biology books are 150 more than the average number of Chemistry and Physics books. The number of Physics books is 150 less than the average number of Biology and Chemistry books. What is the number of chemistry books in the shop?
More Average Questions
- 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 thi...
- The Average income of Akash and Bittu is Rs. 31,000. Akash earns Rs. (p + 5000), while Chirag earns Rs. (2.5p + 500). Given that the average income of Bitt...
- The number of students in class 'A' is 100, and the ratio of the number of girls to boys is 2:3. If the average number of boys in classes A and B is 105, a...
- The combined average weight of 8 apples and 5 oranges is 150 grams. If the average weight of the apples is 180 grams, what is the average weight of the ora...
- A worker completes 6 tasks at an average rate of 5 tasks per day. If he needs to complete an average of 8 tasks per day over 12 days, what should be his av...
- The average number of novels on historical, thriller and fantasy in a library is 25, and the average number of novels on historical and fantasy is 20. If t...
- The average of six numbers is 82. When two more numbers are included, the average increases by 4. Find the average of the numbers included.
- The average age of A and B is 19 years. If A is to be replaced by C, the average would be 18 years. The average age of C and A is 20 years. Find the age of...
- The average expenditure of a man for the first 4 month is Rs.5000 and for the next 8 months is Rs.8000. If he saves 12000 in that year then find his averag...
- The average number of taxis of three colours (black, white and yellow) in a taxi stand is 155. The number of black taxis is 60 more than that of yellow tax...
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)