Two inlet pipes "P and Q" are attached to a tank. Pipe P is at 60% height from the bottom and Pipe Q at the top of the tank. Pipe P and Pipe Q fill 10 liters per minute and 15 liters per minute, respectively, while an outlet pipe R at the bottom of the tank drains 5 liters of water per minute. When 60% of the tank is filled, Pipe P stops working. If all three pipes are opened together it takes 84 minutes to fill the tank. What is the capacity of the tank?

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A factory in Surat made 'x + 250' kurtas, out of which 20% were discarded after inspection. Of the remainder, '0.4x'% got damaged in transit. The store then sold the leftover kurtas at a 75% profit, resulting in a 12% overall profit. How many kurtas were discarded during the the inspection before transit?

सूरत की एक फैक्ट्री ने 'x + 250' कुर्ते बनाए, जिनमें से 20% निरीक्षण के बाद खारिज कर दिए गए। शेष में से '0.4x'% ट्रांजिट के दौरान क्षतिग्रस्त हो गए। स्टोर ने शेष कुर्तों को 75% लाभ पर बेचा, जिससे कुल मिलाकर 12% लाभ हुआ। ट्रांजिट से पहले निरीक्षण के दौरान कितने कुर्ते खारिज किए गए?

Anita sells a decorative item at a 25% profit after allowing a 33.33% discount on its marked price. If the discount offered were Rs. 30 lower, the ratio of its new selling price to the cost price would become 3:2. What will be the selling price if Anita wants a profit of Rs. 48?

अनीता एक सजावटी सजावटी वस्तु को 33.33% छूट देने के बाद 25% लाभ पर बेचती है। यदि दी गई छूट Rs. 30 कम होती, तो नई विक्रय मूल्य और लागत मूल्य की अनुपात 3:2 हो जाता। यदि अनीता Rs. 48 का लाभ चाहती है, तो विक्रय मूल्य क्या होगा?

Rahul bought an article and discovered that his profit on it was 9.09% of its marked price. If the item had instead been marked 100% above its cost price and then sold under the same amount of discount, the profit would have increased by 150%. At what overall percentage profit is it actually sold?

राहुल ने एक वस्तु खरीदी और पाया कि उसे उस पर चिह्नित मूल्य का 9.09% लाभ हुआ। यदि वस्तु को लागत मूल्य से 100% अधिक चिह्नित किया गया होता और फिर उसी छूट के साथ बेचा गया होता, तो लाभ 150% बढ़ जाता। वास्तव में वस्तु को कितने प्रतिशत लाभ पर बेचा गया?

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Pipes A and B would fill a cistern in 18 h and 27 h. Both start together, but pipe A is closed after t hours; the tank becomes full in 15 h. Find t (in hours).

पाइप A और B एक टंकी को क्रमशः 18 घंटे और 27 घंटे में भरते हैं। दोनों एक साथ शुरु होते हैं, लेकिन पाइप A को 1 घंटे बाद बंद कर दिया जाता है; टंकी 15 घंटे में पूरी भर जाती है। t (घंटों में) ज्ञात कीजिए।