Question
Ratio of number of book to number of pen sold by a
shopkeeper is 17:12, respectively while ratio of number of pen to number of pencil sold by the same shopkeeper is 3:7, respectively. If price of each book, each pen and each pencil is Rs. 40, Rs. 20, and Rs. 10 respectively then revenue generated by shopkeeper is Rs. 21600. Find the number of pen sold by shopkeeper. STSolution
Let, number of book and number of pen sold by shopkeeper be 17x and 12x respectively. Number of pencil sold by shopkeeper = 7/3 × 12x = 28x So, 17x × 40 + 12x × 20 + 28x × 10 = 21600 ⇒ 680x + 240x + 280x = 21600 ⇒ 1200x = 21600 x = 18 Number of pen sold by shopkeeper = 12x = 216
What share of the bullet train project cost is being funded by Japan through JICA?
When did the Ministry of Development of North Eastern Region (MDoNER) organize Swachhata Pakhwada in 2024?
Recently which regulatory body has signed an MoU with Indian Institute of Management (IIM) Sambalpur, Odisha to strengthen the micro and small enterpris...
How does the launch of India's first battery energy storage gigafactory in Jammu and Kashmir align with the country's energy goals?
Which company has been approved to develop the 669-megawatt (MW) Lower Arun Hydropower project in eastern Nepal?
Which country is collaborating with India to establish a Center of Water Technology at IIT-Madras?
Which country is building the world's largest petroleum research center?
- How much monthly honorarium will Sanskrit instructors receive under the Adarsh Sanskrit Village Programme?
The Union Ministry of Culture is planning to revive the National Mission for Manuscripts (NMM) under which proposed autonomous body?
Who has been appointed as the new Chairperson of the National Medical Commission (NMC) in 2025?
Relevant for Exams:
