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Sol. Let total number of students be x Total number of participating students = 70% of x Number of boys who are participating = 20% of 70% of x As per the question, number of boys = 4200 20% of 70% of x= 4200 ⇒ x =4200*100/70*100/20=30,000 Total number of students = 30,000.
Percentage of shade required for growing anthurium in summer is
According to Agriculture statistics 2021-22, the wheat production is highest in which of the following state?
Muga silkworm is reared on which of the following tree species?
Tomato leaf curl is caused by
Coorg is a commercial variety of which plantation crop?
Which molecule carries high-energy electrons to the electron transport chain in the citric acid cycle?
What term describes crops planted to mitigate the impact of a failed main crop and catch the remaining season?
Which of the following is a method of controlling plant diseases that involves the use of beneficial microbes?
Aroma in scented rice is due to the presence of
Which of the following bacterial genera is a common cause of soft rot in plants?