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Regression line X on Y is X = 20.5 + 1.7 Y When Y = 20, X = 20.5 + 1.7 (20) = 20.5 + 34 = 54.5
Income of A is twice the income of B. B and A spend 75% and 85% respectively of their incomes. Find the savings of A, if B saves Rs. 18000 in a month.
Suyash have total amount of Rs.2000 out of which, he spent 20% on food, 35% of the rest on travelling. Out of remaining amount he spends Rs.550 on misce...
In an election between two candidates, winner got 30% of total valid votes. If total number of votes cast were 1500 out of which 6% were invalid, then f...
In a competitive examination containing 200 questions, 2 marks are awarded for every correct answer and 1 mark gets deducted for every wrong answer. If ...
The length and breadth of a rectangle are increased by 8% and 5%, respectively. By how much percentage will the area of the rectangle increase
The population of a city is decreased by 14% in the first year and then increased by 25% in the second year. Find the population of the city at the end...
A number reduced by 33% becomes 335. What percent should it be increased so that it becomes 950?
In a company interview test, 65% of the students passed in the first round, and 55% passed in the technical round, while 15% of students failed in both ...
A person saves 25% of his monthly income. If his monthly is increased by 35% and he still saves the same amount as before then find percentage increase ...
A spent 30% and 26% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 20% and 40% to his mother and brother, respec...
