Question
In a 150-liter mixture, the ratio of petrol to diesel is
4:1. To obtain a final mixture with 25% diesel, how much diesel needs to be added to the existing mixture?Solution
ATQ, Quantity of petrol in the original mixture = 150 × (4/5) = 120 liters Percentage of petrol in the new mixture = 100% - 25% = 75% Total quantity of mixture that contains 75% petrol = 120 ÷ 0.75 = 160 liters So, quantity of diesel to be added = 160 - 150 = 10 liters
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
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