The starter and exit quiz of the lesson “Advanced problem solving with percentages”, from the unit “Percentages” (Year 10 Maths) by Oak National Academy.
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Oak National Academy
12 questions
Increase 400 by 3.2%.
If a number increases by 22% and is now 34.16, what was it originally?
A mathematician celebrates their shares increasing by 18% which are now worth £649. How much did they originally invest?
Find 156% of 800
If I decrease £105 to £21, what is the percentage loss?
A good investment gains value by 9% each year. If the investment was worth £20 000 when purchased how much is it worth after 3 years?
A bank offers compound interest of 3% for the first 2 years, followed by 2% for the final year. If I invest £5000 at the start, how much money will I have at the end?
A square (A) has an area of 36cm^2 and a second square (B) has an area of 144cm^2. What is the percentage difference in side length between square A and square B?
A toy is reduced in price by 10%, then a further 10% on the new price a week later. What is the percentage decrease overall from the original price?
A bank offers compound interest of 5% for the first 2 years, followed by 2% for the final year. If I invest £10 000 at the start, how much money will I have at the end?
Aisha declares that "40% of 26 is the same as 26% of 40". Which statement below is correct?
A 500g box of cereal (A) costs £2.60. A larger 1300g box (B) costs £6.76. Which is the best value for money?
