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) ÷ (a + b) = 70 Or, 60a + 85b = 70a + 70b Or, 15b = 10a Or, a : b = 15 : 10 = 3 : 2 Required percentage = [(3 - 2)/3] × 100 = (1/3) × 100 = 33.33% less
1) Patience implies the quietness or self-possession of one’s own spirit under suffering and provocation.
2) This is because at times anger...
According to the author rupee is not the only currency that is losing its value against dollar. How does this fact affect India?
Find the appropriate word.
Fill in blank 3 with the appropriate word from the options.
Find the appropriate word.
Fill in blank 48 with the most appropriate word.
Find the appropriate word.
Which of the following are the conditions that are mentioned in the passage that would force a large number of people to migrate by 2050?
(i) ris...
Find the appropriate word.
Select the most appropriate option to fill in blank.
