Question
The average number of novels on historical, thriller and
fantasy in a library is 160, and the average number of novels on historical and fantasy is 140. If the number novels on fantasy is 25% less than the number of novels on thriller, then what is the number of novels on historical in the library?Solution
Let the number of novels on historical, thriller and fantasy be x, y and z respectively. Given, (x + y + z)/3 = 160 => x + y + z = 480 ….. (1) And, (x + z)/2 = 140 => x + z = 280 ….. (2) From equation 1 and 2 Number of novels on thriller = y = 200 Number of novels on fantasy = 0.75 × 200 = 150 Therefore, number of novels on historical = 480 – (200 + 150) = 130
- How many individuals have received the Prani Mitra Award since its inception in 1966?
Which of the following is India’s first dedicated platform for innovation, curation, and venture development for the burgeoning space entrepreneurial ...
How much allocation was made for the PM eBus Sewa-Payment Security Mechanism scheme by the Union Cabinet?
- According to the EY Report, what is India’s projected GDP growth for FY26?
The National Stock Exchange (NSE) and BSE have announced revisions in Enhanced Surveillance Measures (ESM) framework, which was introduced last month ...
According to the naval construction details, INS Anjadip was constructed at which shipyard?
Match the following rivers with their respective tributaries:
Identify the correct statement:
1. CSIR operates under the Union Ministry of Science and Technology.
2. The President of CSIR is the Prime...
What historic event does International Asteroid Day on 30 June commemorate?
Which state tableau won one of the top three positions in the “Best Tableaux – States/Union Territories” category at the Republic Day Parade 2026?...
Relevant for Exams:
