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 girls in school D and F is 7:8 and ratio of number of boys in school C and F is 8:9. Total number of students in school F?
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
Girls in D : F = 7 : 8
Girls in D = 210
⇒ Let girls in F = [8/7] × 210 = 240
Boys in C : F = 8 : 9
Boys in C = 160
⇒ Boys in F = [160/8 ] × 9 = 180
Total students in F = Girls + Boys = 240 + 180 = 420
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