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Subject Mathematics
776. If m= , n = ay and = , then the value of xyz is :
778. A, B, C start a business. If A invests 3 times as much as B invests and B invests two- third of what C invests, then the ratio of capitals of A, B,C is:
781. A watch was sold at 15% loss. If the selling price was Tk 8 more, then the seller could have made a profit of 10%. What was the purchase price of that watch?
786. Per day wage rate of workers is reduced 50% due to economic slowdown. After one year, the wage rate is increased by 60%. If the per day wage rate before the decrease was Tk. 100, then what is the per day wage rate now?
787. Mr. Salam deposited Tk. 800 in a Bank at 15% annual compound interest rate. At the end of the second year, the total amount including the interest will be :
790. In a sugar-water solution, the ratio of water to sugar is 8 : 3. If you add 2 Kgs of sugar, the ratio becomes 2 : 1. What was the amount of sugar in the original solution?
795. If the length and width of a rectangular garden plot were each increased by Q0 percent, what would be the percent increase in the area of the plot?