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Let the number be '100n'. Final number = 1.24 X 0.7 X 100n = '86.8n' Therefore, net percentage decrease = [(100n - 86.8n) ÷ 100n] X 100 = (13.2n/100n) X 100 = 13.2%
In a 280-litre mixture (milk + water), the ratio of quantities of milk and water is 3:4, respectively. How much water should be added to this mixture su...
In what ratio coffee at 290 Rs/kg should be mixed with the coffee at 365 Rs/kg so that after mixture its rate become 325 Rs/kg if the quantity of 1st ty...
A principal of ₹6000 is invested at a rate of 10% per annum. What is the difference between the simple interest and compound interest earned after 2 y...
The average number of taxis of three colours (black, white and yellow) in a taxi stand is 130. The number of black taxis is 70 more than that of yellow ...
In what ratio coffee at 285 Rs/kg should be mixed with the coffee at 320 Rs/kg so that after mixture its rate become 300 Rs/kg if the quantity of 1st ty...
The combined Average marks of Boys and girls of a class is 66 and the ratio of number of boys and girls is 3:1 and the average marks of the boys is 68. ...
A sum of ₹ 31 was divided among 50 students. If each boy got 70 paisa and each girl got 45 paisa. Find the number of boys.
How much groundnut powder at Rs. 90 a kg. should be added to 56 kg. of cashew powder at Rs.310 a kg. so that by selling the mixture for Rs. 280 a kg...
A started a business with an investment of Rs.30000. After few months B joined him with an investment of Rs.42000. If at the end of the year, they share...
Ajay lists an item at 42% higher than its cost price and gives a 20% discount on this marked price. Determine the percentage of p...
