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In the month of May this year, a mobile showroom had 3200 smartphones. 55% of these were brand 'A' smartphones. In the month of June, the showroom received a certain quantity of brand 'A' smartphones. As a result, the percentage of brand 'A' smartphones increased to 60%. (a) How many brand 'A' smartphones did the showroom receive? (b) ...
A huge fish tank had 1200 fishes. 8% of them were goldfish. A few days later, more goldfish were added to the fish tank. Subsequently, the percentage of goldfish increased to 20%. Find the number of goldfish added to the fish tank.
A spaceship landed on Earth. There were 200 aliens on board the spaceship. 40% of them were green aliens and the rest were red aliens. Some red aliens left the spaceship and stayed behind on Earth. Subsequently, the number of red aliens on board the spaceship reduced to 20% of the total number of aliens on board the spaceship. (a) How ...
John always spends 20% of his monthly salary and saves the rest. After a pay increment of 10%, his monthly expenditure increases by $150. (a) What was his monthly income before the pay increment? (b) How much was his savings after the pay increment? Notes to students: ...
Gina saves exactly 60% of her salary every month. Her salary for the month of September was 20% less than her salary for the month of August. As a result, she spent $360 less in September as compared to the previous month. What was her expenditure in August?
Carol would always use 20% of her monthly salary to fund her daughter’s music classes. She received 40% less salary in May as compared to April. As a result, the amount of money that she used for music classes in May was $120 less as compared to that in April. How much money did she use to fund her daughter's music classes in April?
The original price of a pair of shoes is $200. During a sale, a shop decided to sell it at a discount of 30%. Eric paid for the pair of shoes with 2 $100 notes and received a change of $50.20 What was the tax levied on the pair of shoes? Notes to students: ...
The actual price of a shoe rack in a furniture shop was $32. Samson was given a discount of 12% on buying 2 such shoe racks. However, the shop levied a GST of 15% on the discounted price. Samson gave the cashier $100. If the shop's policy was to round the change off to the nearest cent, how much change was the cashier supposed to give back to Samson? ...
The actual price of a chandelier was $27500. In a year-end clearance sale, Harrison bought one at 70% of the actual price. However, he had to pay a GST of 6% on the price at which he got the chandelier. Inclusive of GST, how much did Harrison end up paying for the chandelier?
Kathy shopped for goods worth a total of $1880 from a supermarket. A discount of 18% was offered on the total bill. However, Kathy had to pay a GST of 5% on the discounted price. Kathy handed over three $500 notes at the billing counter. How much more was she asked to pay? Notes to students: ...