2 : 11 : : 3 : ?
A30
B45
C33
D31
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In a school, 3/8 of the number of students are girls and the rest are boys. One-third of the number of boys are below 10 years and 2/3 of the number of girls are also below 10 years. If the number of students of age 10 or more years is 260, then the number of boys in the school is:
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