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I. 64x2 - 64x + 15 = 0 64x2 - 24x - 40x + 15 = 0 8x (8x - 3 ) - 5 ( 8x - 3 ) = 0 (8x - 5 ) ( 8x - 3) = 0 x = (3/8), (5/8) II. 21y2 - 13y + 2 =0 21y2 - 7y - 6y + 2 = 0 7y ( 3y - 1 ) -2 ( 3y - 1 ) = 0 y = (2/7), (1/3) Hence, x > y.
Monthly income of A is Rs. 85000 out of which he spent 25%, 18% and 24% of his total income in rent, medicine and transportation, respectively. Find his...
Income of A is twice the income of B. B and A spend 65% and 75% respectively of their incomes. Find the savings of A, if B saves Rs. 7000 in a month.
Sam started with 275 chocolates, and Jim had 35 chocolates more than Sam. Each consumed a portion of their chocolates—Sam ate 20% of his, and Jim ate ...
The total strength of school A is 20% more than that of school B. In school A and B, out of total number of students, 20% and 40% respectively are girls...
Niharika saves 25% of her salary in National Savings Certificate and spend 80% of the remaining amount on household items. If the cash in hand is Rs....
The population of a city is decreased by 20% in the first year and then increased by 30% in the second year. Find the population of the city at the end...
Income of A is twice the income of B. B and A spend 50% and 60% respectively of their incomes. Find the savings of A, if B saves Rs. 12000 in a month.
Amit scored 10% marks in a test and failed by 70 marks, while Lisa scored 30% marks in the same test and failed by 30 marks. Find the passing marks of t...
The maximum marks in an examination was 500. Shiva got 25% more than Parul, Parul got 10% more than Tashu. If Shiva got 275 marks. What percentage of fu...
The sum of the monthly incomes of ‘A’, ‘B’ and ‘C’ is Rs. 40000 which is 4 times the monthly income of ‘C’. If ‘A’ spends 30% of his...
