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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?
Ricky and James cycle to a nearby Town. Initially, the ratio of the speed of Ricky to James was in the ratio of 5:8. After a while, Ricky increased his speed by 40%. James decreases his speed such that he had the same speed as Ricky in the end. Find James' percentage decrease in speed. ...
Anna and Liz had some toys in the ratio of 2:5. Anna's father buys a few more toys for her. As a result, the number of toys that Anna has increases by 75%. (a) Liz gave away some toys such that she now has the same number of toys as Anna. What is Liz's percentage decrease in her number of toys? (b) If Anna had 70 toys in the end, how many toys did Liz have at first? ...
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: ...
Demi, Zenith and Shirley bought a present for Charlie. Demi paid $60 for the present while Zenith and Shirley paid the rest. If Demi pays $12 less for the present, the total amount paid by Zenith and Shirley will increase by 6%. How much does the present cost?