Question
The cost of an item rose by 20%. Because of this, the
number of items sold dropped by 10%. What is the overall percentage change in total earnings?Solution
ATQ,
Let the initial cost per item be Rs. ‘10a’ And initial quantity sold be ‘10b’ So, original revenue = 10a × 10b = Rs. ‘100ab’ New price per item = 10a × 1.2 = Rs. ‘12a’ New quantity sold = 10b × 0.9 = Rs. ‘9b’ New revenue = 12a × 9b = Rs. ‘108ab’ Net change = {(108ab – 100ab)/100ab} × 100 = 8% increase
A man spent 20% of his income in May. If his savings is increased by 20% in June and becomes Rs. 11520, then find the income of man in May.
In a test consisting of 300 questions, Pooja answered 40% of the first 180 questions correctly. What number of the other questions does she require to a...
A Company allow 8% commission on the total sales to its salesman but if the salesman is appointed on a fix salary of Rs. 10000 and 6% commission on the...
A Sales Executive gets a commission on total sales at 6%. If the sale is exceeded Rs.18,000 he gets an additional commission as a bonus of 3% on the exc...
Monthly savings of X is 60% of his monthly income which is Rs. 9000. If ratio of monthly expenditure of Y and X is 15:8 respectively and monthly savings...
Out of 550 students in school, 50% students like samosa only and 10% students like samosa and momos both. If 20% students don’t like any snacks then f...
A man spent 38% of his income in May. If his savings is increased by 20% in June and becomes Rs. 14880, then find the income of man in May.
if ratio of present age of Aman to that of Bineet is given as 2:3 and the ratio of present age of Aman to that of Chintu is 13:8.Then, what will be the ...
Neha earns 30% more than Sneha. Neha saves 40% of her salary, while Sneha saves 10%. If the difference in their spending is Rs. 720, what are Neha’s t...
The number of employees in a company increases by 8% each year. If the total employees after 2 years will be 2,916, find the present number of employees.
