Olympiad Test: Ratio & Proportion
20 Questions MCQ Test Mathematics (Maths) Class 6 | Olympiad Test: Ratio & Proportion
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Identify the ratio of 4 seconds and 1/4 minute from the following.
Convert 14 minute to seconds and find the ratio.
A poster is 1.5 cm long and 7.5 cm wide. Which of the following is the ratio (in lowest terms) of the length and perimeter of the poster?
Perimeter = 2(L+B)
P = 2(1.5+7.5) = 18
Length:Perimeter = 1.5:18
L:P = 1:12
The length and width of a tape are 2 m and 28 cm. What is their ratio?
What is the new ratio obtained by adding 4 to the antecedent and 2 to the consequent of the ratio 3:8?
- The original ratio was 3:8, which means there are 3 parts of one quantity and 8 parts of another quantity.
- By adding 4 to the antecedent (3 + 4 = 7), we increase the first part of the ratio to 7.
- And by adding 2 to the consequent (8 + 2 = 10), we increase the second part of the ratio to 10.
So, the new ratio would be 7:10.
In a cricket coaching camp, 1200 children are trained out of which 900 are selected for various matches. What is the ratio of non-selected children to the total number of children?
What is the condition for two ratios to be equal?
What are the extremes of the proportion 9:3::36:12?
Extremes are the end terms. So, 9 and 12 area the extremes of the given proportion.
12:3::x:1 ⇒3x =12 ⇒ x = 12/3 = 4
In a proportion, product of extremes is equal to product of means.
(Since H.C.F. of 144 and 28=4)
25:10::10:4 102=25 × 4 [ Since b2 = ac ]
∴ 10 is the mean proportion.
If x : y : : y : z, identify the correct statement from among the following.
x:y::y:z ⇒y2=xz
Fill in the box so that the three numbers,32 and 64 are in proportion.
The ratios 6:3 and 5 :15 are given. Which of the following is true about them?
The first, second and the third terms of a proportion are 5,120 and 40. What is the fourth term?
The first, third and the fourth terms of a proportion are 6, 12 and 36. What is the second term?
The ratio of boys and girls = 2:3 Girls =180 Let the number of boys be x
=120 ⇒ Boys = 120
The ratio of number of boys to number of girls in a tutorial is 2:3. If there are 180 girls, what is the number of boys?
Given ratio =3:5 lemons = 12 (i.e.,3×4 )water = ? 3 × 4 : 5 × 4 ∴The required number of cups of water =20
The ratio of lemons to number of cups of water to be mixed to prepare lemon juice is 3 :5. For 12 lemons what is the number of cups of water required?
Number of players in a cricket team = 11 Wicketkeeper = 1
∴ Ratio =11:1
In a cricket team what is the ratio of total number of players to the number of wicket keepers?
Total number of players in a cricket team: 11
Number of Wicket keeper : 1
Ratio 11:1
In the word GEOMETRY, what is the ratio of number of consonants to the number of vowels?
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