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Start learning 50% faster. Sign in nowChalk is an organically formed sedimentary rock resulting from the accumulation of calcium carbonate from marine organisms. Chemical sedimentary rocks are formed through mineral deposition from solutions, not applicable to chalk.
A businessman sold 2/5of his stock at a gain of 25% and the remaining at a gain of 20%. The overall percentage of gain is
Aanchal sold a watch to Aman at a 20% profit. Subsequently, Aman sold the watch to Amit at a 15% profit. The difference between the selling price at whi...
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P purchased a book from registered store and gets 14% discount while Q purchased the same book from a roadside stall and got 18% discount. If Q paid Rs....
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A manufacturer produces three types of products: X, Y, and Z. The production costs are ₹200, ₹350, and ₹500 per unit, respectively. In a month, th...
Two pipes 'X' and 'Y' can fill a tank in 24 minutes and 36 minutes, respectively, while a pipe 'Z' can empty the tank in 72 minutes. If all three pipes ...