Question
In a school with 400 students, the average of the age of
the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 years 9 months. Then the number of girls in the school is.Solution
Let the number of Boys be ‘x’ Sum of ages of boys = x x 16 Sum of ages of girls = (400 - x ) x 12 According to question, x × 16 + (400 - x) × 12 = 400 × `14 (3/4)` 16x + 4800 - 12x = 400 × `59/4` 4x + 4800 = 5900 4x = 1100 x = 275 Number of girls = 400 - 275 = 125
_____________ launched the e-Sawaari India Electric Bus Coalition, in partnership with Convergence Energy Service Limited (CESL) and World Resources Ins...
An increase in the price of a product will result in which of the following?Â
SEZ is an abbreviation for which term, denoting areas that drive economic growth?Â
Since which year has the Reserve Bank of India (RBI) been observing Financial Literacy Week (FLW)?
_________ will assume office as president of the Financial Action Task Force (FATF) on July 1 and will serve a fixed two-year term.
Secular stagnation is best described by which of the following scenarios?
The Firm maximises profit by producing that quantity of output where
What is the minimum maturity period for which Commercial Paper (CP) can be issued?
India and which other country have agreed to initiate joint research and development on green fuels including green hydrogen in January 2022?
What essential feature is missing from the manufacturing sector in India, despite its rapid expansion?
