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
More Quant Miscellaneous Questions
1582, 1616, 1658, 1708, 1756, 1812
332, 404, 350, 390, 360, 380
139, 152, 172, 205, 249, 304
- Find the wrong number, in the given number series.
2, 5, 11, 23, 47, 97, 191 169, 224, 293, 385, 497, 629
8, 12, 23, 40, 66, 103
970, 934, 920, 893, 884, 880
- Find the wrong number in the given number series.
9, 8, 18, 51, 208, 1045 Find the wrong number in given series.
1148, 1178, 1516, 1597, 2928, 3097
33 34 37 42 48 58
Relevant for Exams:
