Question
Which of the following is not a vector
quantity?Solution
For a physical quantity to be termed a vector quantity, having magnitude and direction is not enough.
Neha goes to a bookstore with a certain amount of money. She can buy 60 notebooks or 20 novels with the money she has. However, she saves 15% of the amo...
Out of her total income, Priya spent 20% on rent, 50% of the remaining income on groceries, and saved 40% of the income left after her expenses.
A gave 40% of the amount he had to B. B gave 2/5th of what he received from A to C. After paying Rs. 260 to the taxi driver out of the amount he gets fr...
B invests 40% of his monthly salary on Travelling and 25% of remaining on Food. Again, he invested 20% of the remaining (after travelling and food expen...
A man spends 20% of his monthly salary on rent and 35% on other expenses. He invests the remaining salary in shares and fixed deposits in the ratio of 7...
A spent 20% and 25% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 20% and 30% to his mother and brother, respec...
A person spends 15% of his income on insurance and 25% of the remaining income on food. If the amount spent on insurance is Rs. 6,000, then find the amo...
In an examination, a student who scores 20% of the maximum marks fails by 30 marks. Another student who scores 32% of the maximum marks gets 18 marks mo...
- The population of a town increased by 10% in the first year, then again by 15% in the second year, and decreased by 20% in the third year. If the populatio...
The sum of the monthly incomes of βAβ, βBβ and βCβ is Rs. 95000 which is 4 times the monthly income of βCβ. If βAβ spends 25% of his...