Question
The ratio of the number of boys to the number of girls
in a school of 640 students, is 5 : 3. If 30 more girls are admitted in the school, then how many more boys should be admitted so that the ratio of boys to that of the girls, becomes 14 : 9.Solution
Total student = 640 Ratio boys to girls = 5 : 3 Number of boys = 640 $$\times \ frac {5}{8} = 400 Number of girls = 640 - 400 = 240 Now, Number of girls = 240 + 30 = 270 Let the new admitted boys be x. So, number of boys = 400 + x ratio of boys to that of the girls = 14 : 9 (400 + x) / 270 = 14 / 9 (400 + x) × 9 = (270) × 14 3600 + 9x = 3780 x = 180/9 = 20 20 boys should be admitted.
In a landmark event, Narendra Modi inaugurated the first-ever in-plant railway siding for automobiles at which subsidiary of a company?
In which year the Communist Party was formed in India?
International Decade for Women was observed globally between_________Â
Which of the following statement is are CORRECT about India's updated Nationally Determined Contribution (NDC)?
1. In August 2023, Cabinet approv...
Dinyar Contractor who recently passed away was related to which profession?
Which of the following institutes is responsible for undertaking the Deep Ocean Mission?
Where is the Tata Institute of Fundamental Research situated?
______ is reducing the degree or intensity of, or eliminating, pollution.
The Country’s largest iron ore producer NMDC (National Mineral Development Corporation Ltd) has signed a MoU with which of the following for drone bas...