Question
If 2 is denoted by '[', 4 is denoted by '=' , 9 is
denoted by '-' and 0 is denoted by '+', what is '=[-+'?Solution
=[-+ will be written as 4290
40 Litres of water is added to 60 litres of a solution containing 40% alcohol . What is the concentration of alcohol in solution now?
Ravi scored 80 marks in English. He scored 66% marks in Hindi and X marks in Maths. The maximum marks for each subject is 200. The overall percentage of...
The value of A’s car is depreciating by 33% every year whereas the value of his house is appreciating by 11% each year as compared to the previous yea...
Monthly income of P is Rs.15000 and his monthly savings is Rs.9600. If his monthly income is decreased by 35% and monthly expenditure is decreased by 25...
The population of the town is 270,000 4/9th of them are males and the rest are females. 50% males and 40% females are married. Find the percentage of th...
P spends 27% of his salary on transportation, 30% on food, 18% on children’s education and 16% on medical. He deposits the remaining amount of Rs....
M scored 30% marks in an exam whereas N scored 270 marks in the same exam. If the score of N is 90 marks more than that of M, then find the maximum mark...
- A person used to earn Rs. 18000 per month and spend Rs. 12000. In the following year, his income grew by 15% and his expenditure rose by 5%. Find the perce...
If the student scores 30% marks, then he is failed by 210 marks. But if he scores 55% marks then he is passed by 240 marks. Find the passing percentage....
A person spent 23% of his monthly income on food and 44% of the remaining on rent. If amount spent on rent is Rs 1694, then find the amount spent on food.
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