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12th UP Board 2024 | Biology के पेपर में Answers लिखने का Best तरीका ?| अब 1 भी नंबर नहीं कटेगा ?

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A takes 10 days less than the time taken by B to finish a piece of work. If both A and 6 can do it in 12 days, then the time taken by B alone to finish the work is

Statement/ कथन : Is the choice of junk food a better option to create interest in eating in children?/क्या बच्चों में खाने के प्रति रुचि पैदा करने के लिए जंक फूड का विकल्प बेहतर विकल्प है? Arguments: / तर्क: I. Yes, the best way to create interest is to give the food a child likes./हाँ, रूचि पैदा करने का सबसे अच्छा तरीका यह है कि भोजन बच्चे को पसंद किया जाए। II. No, junk food is the reason behind obesity, heart diseases, diabetes and other health problems and it is important to induce healthy eating habits in children. / नहीं, जंक फूड मोटापे, हृदय रोगों, मधुमेह और अन्य स्वास्थ्य समस्याओं का कारण है और बच्चों में स्वाथ्य भोजन की आदतों को प्रेरित करना महत्वपूर्ण है|

Jack and Finn can finish a work together in 6 hours, while Finn alone can do it in 10 hours. What is the ratio of efficiencies of Jack and Finn?

A can finish a work in 14 days at 6 hrs a day. B can finish it in 8 days at 2 hrs a day. Find in how many days they can finish it working together 4 hrs a day.

2 men and 3 women finish 25% of the work in 4 days, while 6 men and 14 women can finish the whole work in 5 days. In how many days will 20 women finish it?

2 men and 3 women finish 25% of the work in 4 days, while 6 men and 14 women can finish the whole work in 5 days. In how many days will 20 women finish it?

A and B working together can finish a piece of work in 6 days, while A alone can do it in 9 days. How much time will B alone take to finish it?

20 men can finish a certain work in 10 days, where as it takes 12 women to finish it in 10 days. If 15 men and 6 women undertake to complete the work, how many days will they take to complete it?