In a class of 72 students, the number of boys is 8 more than the number of girls. Shreya, a girl, ranks 19th from the top. If there are 11 boys ahead of Shreya, how many girls are ranked below her ?
None of the above
Let girls = g. Then boys = g + 8 and \(g + (g + 8) = 72 \Rightarrow 2g = 64 \Rightarrow g = 32\), boys = 40.
Shreya is 19th, so 18 students are ahead of her: 11 boys and 18 - 11 = 7 girls.
Girls below Shreya = 32 - 7 - 1 (Shreya herself) = 24.
Check: 7 + 1 + 24 = 32 girls. Since 24 is not among 30, 28, 22 or 26, none of the listed values fits.
Hence, None of the above.
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