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Let the total number of students in a class be x ∴ According to the question, Number of girls = 3/5 x and number of boys = x - 3/5 x = 2/5 x Number of girls who are absent = 3/5 × 2/9 x = 6x/45 and number of boys who are absent = 2/5 × 1/4 x = x/10 ∴ Total number of students who are present = x - 6x/45 - x/10 = (90x - 12x - 9x)/90 = 69x/90 = 23x/30 ∴ The 23/30 part of the students are present in the class.
Which of the following vitamin contains Cobalt?
Amino acid is attached to which site of tRNA ?
A population with an equal number of young and mature individuals represents:
Green plants are usually the first link in any food chain because
An auxiliary bud develops into which part of the plant?
Kidney stones are primarily composed of which substance?
Which part of the brain is responsible for actions like thinking, intelligence, memory, and learning?
Which organ controls reflex actions?
Which statement about the Human Genome Project is incorrect?
The principle hormone for Elongation of cells in plants is: