Question
In class ‘C’, the number of girls is 25% more than
that of boys while in class ‘D’ the number of girls is 40% more than that of boys. If the total number of students in class ‘C’ and ‘D’ is 360 and 420, respectively, then find the difference between the number of girls in classes ‘C’ and ‘D’.Solution
ATQ, Let the total number of boys in class ‘C’ = ‘10a’ Then, the total number of girls in class ‘C’ = 1.25 × 10a = ‘12.5a’ Let the total number of boys in class ‘D’ = ‘10b’ Then, the total number of girls in class ‘D’ = 1.40 × 10b = ‘14b’ According to the question, 10a + 12.5a = 360 Or, 22.5a = 360 Or, a = 360 / 22.5 = 16 And, 10b + 14b = 420 Or, 24b = 420 Or, b = 420 / 24 = 17.5 Required difference = 14b – 12.5a = 14 × 17.5 – 12.5 × 16 = 245 – 200 = 45
According to the "World Population Prospects 2024" study by the United Nations, what is the projected peak population of the world in the mid-1980s?
Which team won the Women's Asia Cup title in 2024?
Which of the following public sector company has been honoured with 'ATD Best Awards 2023' by the Association for Talent Development (ATD), USA?
Consider the following statement about recent nomination in Board of Trade.
I. Recent government has nominated 29 non...
Which of the following is not a parameter of Prompt Corrective Action?
AS the part of India’s presidency of SCO, the B2B Conference & Expo along with National Arogya Summit was held in?
- What is the name of the Indian Navy’s Meteorological and Oceanological Symposium held in April 2025?
The Reserve Bank of India (RBI) recently launched its third global hackathon, HaRBInger 2024. Which of the following themes is NOT included in this hack...
Which agribusiness company is planning to invest Rs 300 crore over the next 3-4 years to set up an integrated palm oil complex, including a crude palm o...
Consider the following statements:
I. Pradhan Mantri Awas Yojana – Urban (PMAY-U), a flagship Mission of Government of India was launched...
Relevant for Exams:
