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I. 2x2 - 15x + 25 = 0 2x2 - 5x - 10x + 25 = 0 x (2 x – 5) – 5(2 x – 5) = 0 (x – 5)(2 x – 5) = 0 x = 5, 5/2 II. 3y2 - 10y + 8 = 0 3y2 - 6 y - 4y + 8 = 0 3 y (y - 2) – 4(y – 2) = 0 (3 y – 4) (y – 2) = 0 y = 2, 4/3 Hence, x>y
In a colony, there are 120 APL families and 54 BPL families. Each APL and BPL family got blankets equal to 15% and 75%, respectively of total number of ...
Out of 520 students in school, 30% students like samosa only and 40% students like samosa and momos both. If 20% students don’t like any snacks then f...
Kiran spent 12% of his monthly income on education, 28% on entertainment, 15% on rent, 30% on travelling and the rest on savings. If the difference betw...
In an election two candidates participates. 20% voters did not vote. 25% votes declared invalid and the winner get 80 % of the valid votes. If he win by...
The income of ‘A’ increases by 33% every year. If the present income of ‘A’ is Rs. 35378 and his expenditure 2 years ago from now was Rs. 14580,...
Lalit buys wheat at Rs. 20/kg and puts a price tag on it so as to earn a profit of 30%. However, his faulty balance shows 1000 gm when it is actually 60...
The total population of a village is 12600. If the rate of growth of male population is 20% per year and the rate of growth of female population is 10% ...
A gave 60% of the amount he had to B. B gave 3/5th of what he received from A to C. After paying Rs. 220 to the taxi driver out of the amount he gets fr...
After decreases in petrol prices by 20%, a person is able to buy 3 litre more petrol for Rs. 540. Find the original and increased price of petrol per li...
In a college the ratio of boys and girls are in the ratio 7:9. 65% girls and 40% boys were absent. Find the girls present if the total number of student...
