Question : The following table represents the population of four different areas and the percentage of males, females, and children among them.
Area | Population | Males | Females | Children |
P | 10,000 | 40% | 40% | 20% |
Q | 20,000 | 30% | 40% | 30% |
R | 16,000 | 50% | 30% | 20% |
S | 18,000 | 45% | 35% | 20% |
What is the total number of children in areas P and Q together?
Option 1: 7000
Option 2: 9000
Option 3: 6000
Option 4: 8000
Correct Answer: 8000
Solution :
The total number of children in areas P and Q together = Number of children in area P + number of children in area Q
= 20% of 10,000 + 30% of 20,000
= $\frac{20}{100}\times10000+\frac{30}{100}\times 20000$
= $2000+6000$
= $8000$
Hence, the correct answer is 8000.
Related Questions
Question : Calculate the mean from the following table.
Scores | Frequencies |
0-10 | 2 |
10-20 | 4 |
20-30 | 12 |
30-40 | 21 |
40-50 | 6 |
50-60 | 3 |
60-70 | 2 |
Option 1: 33.4
Option 2: 32.6
Option 3: 35.8
Option 4: 34.2
Question : Study the given table and answer the question that follows.
The table shows data of the population and literacy/illiteracy rate among the population in three different villages.
The table shows data of the population and literacy/illiteracy rate among the population in three different villages.
Village | Respective ratio between the number of males and females | Percentage of literates (Males and females) out of total population | Number of illiterates (Males and females) out of total population |
P | 2: 5 | 45 | 380 |
Q | 3 : 7 | 65 | 270 |
R | 1 : 3 | 80 | 150 |
The number of illiterates in village R is what percentage less than that in village P?
Option 1: $60 \frac{11}{19} \%$
Option 2: $60 \frac{9}{19} \%$
Option 3: $60 \frac{10}{19} \%$
Option 4: $60 \frac{8}{19} \%$
Question : The following table shows the mobile-addicted population of four different cities Hyderabad, Mumbai, Chennai, and Pune, and the ratio of males to females among them.
City | Mobile addicted population | Male : Female |
Hyderabad | 2,20,000 | 7 : 8 |
Mumbai | 3,50,000 | 12 : 13 |
Chennai | 2,00,000 | 11 : 9 |
Pune | 1,50,000 | 9 : 11 |
Find the total number of addicted males in Chennai.
Option 1: 1,10,000
Option 2: 80,000
Option 3: 1,00,000
Option 4: 1,20,000
Question : The given table represents the population of different villages.
Name of Village | Number of males | Number of females |
A | 1500 | 1220 |
B | 1460 | 1320 |
C | 1105 | 1180 |
D | 1305 | 1170 |
J denotes the average number of males in villages A, B, and C.
K denotes the average number of females in villages B, C, and D.
What is the average of J and K?
Option 1: 1289.17
Option 2: 1279.62
Option 3: 1278.36
Option 4: 1288.62
Question : The total number of teachers in different subjects and the respective percentage of females among them in a school are given in the following table. Study the table and answer the following question.
Subject | Total number of teachers | Percentage of females |
Hindi | 50 | 80 |
English | 40 | 90 |
Mathematics | 60 | 35 |
Science | 55 | 40 |
Commerce | 30 | 50 |
Social Science | 40 | 75 |
In which subject are the maximum number of teachers males?
Option 1: Mathematics
Option 2: Hindi
Option 3: Commerce
Option 4: English
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