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Home › Grade7 › Grade 7 Olympiad › Math Olympiad-Grade-7 › Comparing Quantities › Comparing Quantities Worksheet-7

Comparing Quantities Worksheet-7

Comparing Quantities Worksheet-7

 

  1. First, second and the third terms of a proportion are 5, 120 and 40. Then the fourth term is

(a) 89                 (b) 480               (c) 960               (d) 98

 

  1. First, third and the fourth terms of a proportion are 6, 12 and 36. Then the second term is

(a) 12                  (b) 18                  (c) 16                  (d) 108

 

  1. Ratio of number of boys to number of girls in a tutorial is 2 : 3. If there are 180 girls the number of boys is

(a) 36                  (b) 60                 (c) 120                (d) 100

 

  1. Ratio of lemon to water to be mixed to prepare lemon juice is 3 : 5. For 12 lemons the number of cups of water to be used is

(a) 10                  (b) 15                  (c) 20                  (d) 25

 

  1. In a quiz programme the ratio of correct answers to incorrect answers is 5 : 2. If 16 incorrect answers are given then the number of correct answers given is

(a) 80                 (b) 40                 (c) 20                  (d) 30

 

  1. In a cricket team the ratio of total number of players to the number of wicket keepers is

(a) 1 : 11              (b) 11 : 1             (c) 16 : 1             (d) 10 : 1

 

  1. In a football match the ratio of total number of players of both the teams to the number of referees is

(a) 10 : 2            (b) 11 : 2             (c) 22 : 2            (d) 22 : 1

 

  1. In the word MATHEMATICS the ration of number of consonants to the number of vowels

(a) 4 : 7              (b) 7 : 4              (c) 5 : 6               (d) 6 : 5

 

  1. In our country India the ratio of number of states to the number of union territories is

(a) 7 : 28            (b) 25 : 7            (c) 28 : 7            (d) 7 : 25

 

  1. Cost of 12 apples is Rs. 96. The cost of 15 apples is

(a) Rs. 12           (b) Rs. 102        (c) Rs. 120         (d) Rs. 140

 

  1. Cost of 1 book is Rs. 12. The cost of 9 books is

(a) Rs. 86          (b) Rs. 106        (c) Rs. 108         (d) Rs. 118

 

  1. 12 sarees cost Rs. 3600. The cost of 1 saree is

(a) Rs. 300        (b) Rs. 350        (c) Rs. 250        (d) Rs. 200

 

  1. A car travels 81 km in 3 hrs. The distance that can be travelled by the car in 5 hrs is

(a) 27 km           (b) 135 km         (c) 153 km         (d) 125 km

 

  1. The middle terms of proportion are called

(a) Antecedents                             (b) Means

(c) Extremes                                  (d) Consequents

 

  1. Ratio is a method of comparing two quantities by

(a) Addition                                   (b) Subtraction

(c) Division                                    (d) None

 

  1. The antecedent and consequent of a ratio ______ interchanged unless there is a change in the given statements.

(a) Can be          (b) Cannot be   (c) Sometimes  (d) None

 

  1. In the word ‘proportion’, the ratio of number of p’s to the number of o’s is

(a) 2 : 3              (b) 3 : 2              (c) 1 : 3               (d) 3 : 1

 

  1. Symbol for proportion is

(a) :                     (b) ≅                    (c) =                    (d) ::

 

  1. Proportionality symbol is read as

(a) is to               (b) equal to       (c) as to              (d) none

 

  1. Ratio symbol is _____ and is read as _____.

(a) :, is to           (b) ::, equal to  (c) =, equal to   (d) None

 

Answer Key:

(1)-(c); (2)-(b); (3)-(c); (4)-(c); (5)-(b); (6)-(b); (7)-(d); (8)-(b); (9)-(c); (10)-(c); (11)-(c); (12)-(a); (13)-(b); (14)-(b); (15)-(c); (16)-(b); (17)-(a); (18)-(d); (19)-(c); (20)-(a)