Study the given pie charts and answer the question that follows. If the ratio of the number of boys to that of the girls who passed from institute A is 5 ∶ 6, and 40% of the students who passed from institute D are boys, then the ratio of the number of boys who passed from institute A to that of boys who passed from institute D is:
Study the given pie charts and answer the question that follows. If the ratio of the number of boys to that of the girls who passed from institute A is 5 ∶ 6, and 40% of the students who passed from institute D are boys, then the ratio of the number of boys who passed from institute A to that of boys who passed from institute D is: Correct Answer 5 ∶ 4
Calculation:
Number of students passed in A = 1200 × 22/100
⇒ 264
Number of boys who passed from A = 264 × 5/11
⇒ 120
Number of students passed in D = 1200 × 20/100
⇒ 240
Number of boys who passed from D = 240 × 2/5
⇒ 96
Ratio = 120 : 96
⇒ 5 : 4
∴ Required ratio is 5 : 4
/
⇒ (2 × 5 × 12) ∶ (4 × 2 × 12)
⇒ 5 ∶ 4
∴ Required ratio is 5 : 4
মোঃ আরিফুল ইসলাম
Feb 20, 2025