Question
Download Solution PDFComprehension
The bar graph shows the total number of students [ boys and girls] and total number of girls in five different [ A, B, C, D and E] schools.
Ratio of number of students use school bus and number of students who do not use school bus in school A is 5:3. Out of total number of students 50% are who use school bus are girls. Find number of boys who do not use school bus from school A?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCommon Calculation
School |
Total number of students [ Boys + Girls] |
Total number of girls |
The number of boys |
A |
320 |
180 |
320 – 180 = 140 |
B |
280 |
160 |
120 |
C |
360 |
200 |
160 |
D |
380 |
210 |
170 |
E |
420 |
200 |
220 |
Calculation
Ratio of students using school bus to those not using it = 5:3
Total students in School A = 320
So, let students using school bus = [5/8] × 320 = 200
Those not using school bus = 320 – 200 = 120
Out of those who use the school bus, 50% are girls
⇒ girls = [50 / 100] ×200=100
So, boys who use the bus = 100
Total boys in A = 140
So, boys not using the bus = 140 – 100 = 40
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