Question
The overall average score of a group of students is 70.
The boys have an average of 60 and the girls average 85. By what percentage is the number of boys less than the number of girls?Solution
ATQ,
Let the number of boys and girls be 'a' and 'b' respectively. (60a + 85b) Ă· (a + b) = 70 Or, 60a + 85b = 70a + 70b Or, 15b = 10a Or, a : b = 15 : 10 = 3 : 2 Required percentage = [(3 - 2)/3] Ă— 100 = (1/3) Ă— 100 = 33.33% less
Which of the following books was not written by Amir Khusrau ?
The value ofÂ
Which of the the Judgement implied that the parliament can only amend the constitution and not rewrite it?
Among the following who are eligible to benefit from the “Mahatma Gandhi National Rural Employment Guarantee Act”?
The refractive index of air is :
As per India state of forest report 2019, which of the following states has the largest forest cover (area wise)?
According to “The Plantation labour act 1951” If employee refuse to provide “Medical facility” who will provide it?
Who has topped the category of large states in the recently released India Justice Report 2022?
Which one among the following is not a basic function of a computer?
A statement is given, followed by four conclusions given in the options. Find out which conclusion is true based on the given statement.
Statemen...
