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In a school, 5/12 of the number of stude...

In a school, `5/12` of the number of students are girls and the rest are boys, `4/7` of the number of boys are below 14 years of age, and `2/5` of the number of girls are 14 years or above 14 years of age. If the number of students below 14 years of age is 1120, then the total number in the school is:
एक स्कूल में, छात्रों की संख्या में से `5/12` लड़कियाँ हैं और बाकी लड़के हैं, जिनमें से `4/7` लड़कों की संख्या 14 वर्ष से कम है, और `2/5` की संख्या में लड़कियाँ 14 वर्ष या 14 वर्ष से अधिक हैं। यदि 14 वर्ष से कम आयु के छात्रों की संख्या 1120 है, तो स्कूल में कुल संख्या है:

A

1820

B

1290

C

1900

D

1920

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The correct Answer is:
D
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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: किसी विद्यालय में छात्रों की संख्या का 3/8 भाग लड़कियाँ और शेष लड़के है| लड़को की संख्या का एक तिहाई 10 वर्ष से कम है और लड़कियों की संख्या का 2/3 भी 10 वर्ष से कम है| यदि 10 वर्ष या उससे अधिक आयु वाले छात्रों की संख्या 260 है, तो विद्यालय में लड़को की संख्या ज्ञात कीजिए |

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