Question
In a class, 70% of the students
are adults, and 40% of the adults are females. If the number of adult males in the class is 105, what is the total number of students in the class?Solution
ATQ, Let total number of students in the class be '100a'. So, number of adults in the class = 100a X 0.7 = '70a' And, number of adult females in the class = 70a X 0.4 = '28x' So, number of adult males in the class = 70a - 28a = '42a' ATQ; 42a = 105 Or, a = 2.5 So, total number of students in the class = 100 × 2.5 = 250
Consider the following pairs:
Which of the pairs give...
Consider the following statements about Malwa Plateau:
1. Vindhyan Hills lie at the southern edge of the plateau.
2. The plateau has drain...
Which river rises in the Indian Himalayas?
What is the interval between two high tides ?
Which area is referred to as the Konkan coast?
Amindivi and Minicoy are parts of which Indian Union Territory?
Consider the following statements with reference to the Peninsular block of India:
1. The Thar Desert is part of the Peninsular block.
2. ...
What is the southern tip of India?
In which tiger reserve was a herpetofauna survey conducted that recorded 33 reptile species and 36 amphibian species?
Which Indian state has the longest coastline?
Relevant for Exams:
