Question
The average number of books on history, polity and
geography in a library is 180, and the average number of books on history and geography is 150. If the number books on geography is 20% less than the number of books on polity, then what is the number of books on history in the library?Solution
Let the number of books on History, Polity and Geography be x, y and z respectively. Given, (x + y + z)/3 = 180 Or, x + y + z = 540 ….. (1) And, (x + z)/2 = 150 Or, x + z = 300 ….. (2) From equation 1 and 2 Number of books on polity = y = 240 Number of books on geography = 0.8 × 240 = 192 Therefore, number of books on history = 540 – (240 + 192) = 108
Which is the first state in India to become fully organic?
The third Buddhist Council was held by:
THE GROSS non-performing assets (GNPA) of the country's scheduled commercial banks, which declined to a 10-year low of 3.9 per cent in March 2023, is e...
ULPIN is a ____ digit Alpha–Numeric Unique ID for each land parcel
Which of the following statement in are corect regarding Squash World Cup 2023?
1. India's campaign at the Squash World Cup 2023 ended in the sem...
Neeraj Chopra first set the senior national record during the 2016 South Asian Games held at __________.Â
Which bank has won the EAG Laureate award in the International Olympiad of Financial Security held at Sochi, Russia on 10 October 2022?
_______, which translates to 'dance of the enchantress,' stands out as one of the most captivating expressions in the Indian classical dance repertoire....
What is the name of the world’s longest expressway tunnel recently opened by China in the Xinjiang Uygur Autonomous Region?
Now a days, people are replacing artificial sugar with stevia because it has no ______.
