Question
In a class, 2/5 of the students are girls and rest are
boys. If 4/9 of the girls and 1/3 of the boys are absent, what part of the total number of students are present?Solution
Let the total number of students in a class be x According to the question, Number of girls = 2x/5 and number of boys = x - 2x/5 = 3x/5 Number of girls who are absent = 2x/5 x 4x/9 = (8x)/45 and number of boys who are absent = 3x/5 x 1x/3 = x/5 Total number of students who are present = x - (8x/45) - x/5 = (45x - 8x - 9x)/45 = (28x/45) The 28/45 part of the students is present in the class
Aluminium Phosphide is used to control stored grain pest _____
‘Centering’. The first cut on a young tea plant is at which of the following:Â
Water is drawn upwards from the water table in a continuous network of pores. This upward movement of water occurs only in saturated soils is called
What is the major limitation of privatized extension services?
The land-related reform enacted to protect tenants from eviction and secure their right to cultivate the land is known as:
Triazines and triazinones inhibit ______
The critical limit for NO3-N (mg/litre) in drinking water (as per WHO standard is:
Khaira disease of rice can be controlled by spraying of ____________ .
Bengal famine in 1943 was caused due to which disease?
The scientific name of the Italian honey bee is
Relevant for Exams:
