Question
In a mixed school 25% of the scholars are infants under
7 and the number of girls above 7 is 4/5 of the number of boys above 7, is 120. Find the number of scholars in the school.Solution
Let the total number of scholars in the school be x. Number of infants under 7 = (25 x)/100= x/4 ∴ Remaining scholars = x- x/4 = (3 x)/4 ∵ Number of girls above 7 = 4/5 of Number of boys above 7 Now, 120 = 4/5× number of boys above 7 Number of boy above 7 = 150 ∴ 3x/4 = 120 + 150 ⇒ (3 x)/4 = 270 ⟺ x = 360
Globalization refers to:
Which one of the following climatic region is predominant in acid soils?
The stage of mitosis during which the chromosomes condense and become visible is called:
Manuring in mature tea is done on the basis of which of the following?
Which one of the following equations to calculate the discharge through an orifice?
(a) 0 = 0 61 × 10 a √2 gh
(b) 0 = 00186 LH
Allophone is found in which type of soils?
_______are plants that have chromosome numbers which are not an exact multiple of the haploid number.
What biological control agent is considered most “useful” in managing a wide range of insect pests effectively in agroecosystems?
Controlled Atmosphere (CA) storage is primarily used to regulate which of the following gas concentrations?
What is the initiative introduced in 2023 that focuses on reducing fertilizer consumption and creating awareness?
Relevant for Exams:
