Lesson details

Key learning points

  1. In this lesson, we will solve problems involving ratio, fractions and percentages.

Licence

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5 Questions

Q1.
The angles in a triangle are in the ratio 1 : 2 : 3. What type of triangle is it?
Equilateral
Isosceles
None of these
Correct answer: Right-angled
Q2.
The angles in a triangle are in the ratio 3 : 4 : 5. What type of triangle is it?
Equilateral
Isosceles
Correct answer: None of these
Right-angled
Q3.
The angles in a triangle are in the ratio 1 : 1 : 1. What type of triangle is it?
Correct answer: Equilateral
Isosceles
None of these
Right-angled
Q4.
The ratio of Adam’s height to Tony’s height is 7 : 9. Adam is 154 cm tall. How tall is Tony?
Correct answer: 198 cm
22 cm
44 cm
86.625 cm
Q5.
The ratio of Adam’s height to Tony’s height is 7 : 9. Adam is 154 cm tall. How much taller is Tony?
198 cm
22 cm
Correct answer: 44 cm
86.625 cm

5 Questions

Q1.
A box contains caramel and toffee chocolates. 3/10 of the chocolates are caramel. What is the ratio of caramel to toffee chocolates in the box?
3 : 10
Correct answer: 3 : 7
7 : 3
7 :10
Q2.
Which ratio could be described by the statement: A is 3/5 of B. All options are given in the form A : B.
2 : 3
2 : 8
Correct answer: 3 : 5
3 : 8
Q3.
At a bake sale 25% of the cupcakes on sale are chocolate. 3/5 of the cupcakes are vanilla and the rest are peanut butter. What is the ratio of chocolate:vanilla:peanut butter?
25 : 3 : 2
25 : 60 : 5
3/20
Correct answer: 5 : 12 : 3
Q4.
At a bake sale 25% of the cupcakes on sale are chocolate. 3/5 of the cupcakes are vanilla and the rest are peanut butter. If there are 48 peanut butter cupcakes, how many cupcakes are there altogether?
133
288
Correct answer: 320
76
Q5.
The ratio of roses to violets is 3 : 4. The ratio of violets to daisies is 6 : 5. What is the ratio of roses to violets to daisies, in its simplest form?
3 : 10 : 5
6 : 8 : 5
72: 24 : 120
Correct answer: 9 : 12 : 10

Lesson appears in

UnitMaths / Ratio review (9.7a)