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Home › Grade7 › Grade 7 Olympiad › Math Olympiad-Grade-7 › Comparing Quantities › Comparing Quantities Worksheet-9

Comparing Quantities Worksheet-9

Comparing Quantities Worksheet-9

 

  1. 5 out of 2250 parts of the earth is sulphur. What is the percentage of sulphur in the earth?

(a)                (b)                (c)                (d)

 

  1. A salesman’s terms were changed from a flat commission of 5% on all his sales to a fixed salary of Rs. 1000 plus 2.5% commission on all sales exceeding Rs. 4000. If his remuneration as per the new scheme was Rs. 600 more than by the first scheme. What were his sales worth?

(a) Rs. 8000     (b) Rs. 10,000  (c) Rs. 12,000  (d) Rs. 15,000

 

  1. When the price of a pressure cooker was increased by 15% the sale of pressure cooker decreased by 15%. What was the net effect on the sales?

(a) No effect                                   (b) 15% increase

(c) 2.25% increase                       (d) 2.25% decrease

 

  1. The number of seats for admission is increased by 10% every year. If the number of seats in 2001 was 400, what were the number of seats in 2003?

(a) 824               (b) 484               (c) 500               (d) 480

 

  1. In an election between two candidates, the candidate who gets 30% of the votes polled is defeated by 15,000 votes. What is the number of votes polled by the winning candidate?

(a) 37,500         (b) 30,000        (c) 26,250         (d) 11,250

 

  1. A number A exceeds B by 25%. By what percent is B short of A?

(a) 20%              (b) 25%              (c) 30%              (d) None

 

  1. A number of A exceeds B by 25%. By what percentage is A more than B?

(a) 20%              (b) 25%              (c) 30%              (d) None

 

  1. If ‘a’ is x% more than ‘b’ and ‘b’ is y% less than ‘a’. Then the relation between x and y is

(a)                              (b)

(c)                               (d) None of These

 

  1. A reduction of 25% in the price of rice enabled a person to buy 5 kg. more for Rs. 120. Find the original price.

(a) Rs. 24           (b) Rs. 6             (c) Rs. 8             (d) None

 

  1. If the price of gas is increased by 20% by how much %  must a house wife reduce her consumption of gas, so as to have no extra expenditure?

(a) 16 2/3%         (b) 25%              (c) 20%              (d) 50%

 

  1. The price of milk decreases by 20%. If a housewife wants to spend the same amount of money, how much % excess milk can she get?

(a) 16 2/3%         (b) 25%              (c) 20%              (d) 50%

 

  1. The price of an article diminished twice successively, first by 30% and then by 40%. If the original price was Rs. 1000, what is it now?

(a) Rs. 400        (b) Rs. 300        (c) Rs. 240        (d) Rs. 420

 

  1. Two numbers are 20% and 25% less than a third number respectively. How much % is the second number less than the first?

(a)            (b)              (c)              (d)

 

  1. In 2003, Indian cricket team played 60 games and won 30% of the games played. After a phenomenal winning streak, this team raised its average to 50%. How many games did the team win in a row to attain this average?

(a) 36                  (b) 24                 (c) 48                  (d) 12

 

  1. A pudding is made of 200 gm sugar, 800 gm eggs, 600 gm flour and 200 gm dry fruits. What percent of sugar is present in the whole pudding?

(a)             (b)            (c)              (d) None

 

  1. What percent of 270 m is 108 m ?

(a) 36%              (b) 40%              (c) 30%              (d) 25%

 

  1. Which of the following statement is wrong?

(a) + 625 = 80% of 1200 – 320

(b) 5 ½ of 240 = 150% of 880

(c) 25% of 50% = 0.125

(d) 150 gms is 20% of a Kg.

 

  1. 35% population of a town are men and 40% are women. If the number of children are 20,000, then the number of women will be

(a) 3200            (b) 30,050         (c) 32,000         (d) 31,500

 

  1. A positive number is by mistake divided by 6 instead of being multiplied by 6. What is the % error (approximately)?

(a) 3                    (b) 97                  (c) 83                  (d) 75

 

  1. Difference between a rupee and 1% of a rupee is

(a) 99 paise       (b) 1.01 paise    (c) 11 paise        (d) None

 

Answer Key:

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