A housewife reduces her consumption of coffee by 20% due to a 20% increase in price of coffee. What is the percentage effect on the expenditure on coffee?
- 4% increase
- 2% increase
- No change
- 2% decrease
- 4% decrease
1 lb of sweets is marked at $100. Due to festival; a discount of 10% is given. Even after this discount, the shopkeeper earns 35% profit. What loss or gain would the shopkeeper make, if the sweets are sold for $30 less than the marked price?
A salesman’s terms are changed from a flat commission of 5% on all his sales to a fixed salary of $1000 plus 2.5% commission on all sales exceeding $4000. If his remuneration with the new scheme was $600 more than by the first scheme, what was his sales worth?
In a examination of 5 subjects, all with the same maximum score, a candidate scored 60% in the aggregate and marks in proportion to 5 : 4 : 4 : 3 : 4 in individual subjects. What was his highest score in any subject?