Question
The average weight of 8 students in a class is 35 kg. If
the weight of 4 teachers is also included, then the new average weight of each person (teacher + student) in the class becomes 40 kg. Find the average weight of the four teachers.Solution
ATQ, Let the average weight of the four teachers be 'x' kg. So, total weight of the four teachers = 4 × x = '4x' kg. ATQ: 35 × 8 + '4x' = 40 × (8 + 4) Or, 280 + 4x = 40 × 12 Or, 280 + 4x = 480 Or, 4x = 480 - 280 = 200 Or, x = 200 ÷ 4 = 50 Therefore, the average weight of the four teachers is 50 kg.
Jaya, a high yielding variety developed in India which outyield both its parent was a cross between
Nucleic acids are:
White eye deficiency is found in which crop?
Indian institute of millet research, to be supported as the centre of excellence for ‘shree anna’ located in_____
Which of the following test is used to test the goodness of fit?
“Hopper burn” is caused by brown plant hopper in _________ crop:
Flavor of lemon grass is due to
Who is the father of agro-meteorology in India?
Dithane M45 is a:
Regarding viral genetic material, which statement is correct?
Relevant for Exams:
