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Home › Grade8 › OLYMPIAD › Math Olympiad-Grade-8 › Simplification › Simplification Worksheet-8

Simplification Worksheet-8

Simplification Worksheet-8

 

  1. A boy multiplied 423 by a number and obtained 65589 as his answer. If both the fives in the answer are wrong and all other figures are correct, the correct answer is ;

(a) 60489          (b) 61189           (c) 62189           (d) 62389

 

  1. The total monthly salary of 4 men and 2 women is Rs. 46,000. If a woman earns Rs. 500 more than a man, what is the monthly salary of a woman ?

(a) Rs. 6500      (b) Rs. 7500      (c) Rs. 8000     (d) Rs. 9000

 

  1. David got two and a half times as many marks in English as in History. If his total marks in the two subjects are 140, the marks obtained by him in English are :

(a) 40                 (b) 75                  (c) 90                  (d) 100

 

  1. The number of girls in a class is 5 times the number of boys. Which of the following cannot be the total number of children in the class ?

(a) 24                  (b) 30                 (c) 35                  (d) 42

(e) 54

 

  1. Water boils at 212°F or 100°C and melts at 32°F or 0°C. If the temperature of a, particular day is 35°C, it is equivalent to :

(a) 85°F             (b) 90°F             (c) 95°F              (d) 99°F

 

  1. A sum of Rs. 750 is distributed among A, B, C and D in such a manner that A gets as much as B and C together, B gets Rs. 125 more than C and D gets as much as C. What is A's share ?

(a) Rs. 100        (b) Rs. 225        (c) Rs. 275         (d) Rs. 325

 

  1. A bonus of Rs. 1000 is to be divided among three people so that Rohit receives twice as much as Sachin, who receives one–fifth as much as Gagan. How much money should Gagan receive ?

(a) Rs. 100        (b) Rs. 250        (c) Rs. 375         (d) Rs. 625

 

  1. The total number of digits used in numbering the pages of a book having 366 pages, is :

(a) 732               (b) 990               (c) 1098             (d) 1305

 

  1. A printer numbers the pages of a book starting with 1 and uses 3189 digits in all. How many pages does the book have ?

(a) 1000             (b) 1074             (c) 1075              (d) 1080

 

  1. What fraction of an hour is a second ?

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

 

  1. When a ball bounces, it rises to of the height from which it fell. If the ball is dropped from a height of 32 m, how high will it rise at the third bounce ?

(a) 13 m             (b)           (c)           (d) None of these

 

  1. Sanket earns twice as much in the month of March as in each of the other months of the year. What part of his entire annual earnings was earned in March ?

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

 

  1. If one–third of a tank holds 80 litres of water, then the quantity of water that half of the tank holds is :

(a) litres     (b) 100 litres     (c) 120 litres     (d) 240 litres

 

  1. A person travels 3.5 km from place A to place B. Out of this distance, he travels km on bicycle, km on scooter and the rest on foot. What portion of the whole distance does he cover on foot ?

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

 

  1. What fraction of must be added to itself to make the sum ?

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

 

  1. Express of of Rs. 25.20 as a fraction of of Rs. 36.

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

 

  1. A 70 cm long wire is to be cut into two pieces such that one piece will be as long as the other. How many centimetres will the shorter piece be ?

(a) 10                  (b) 14                  (c) 20                 (d) 28

 

  1. A certain amount is distributed among A, B and C. A gets and B gets of the whole amount. If C gets Rs. 81, then B gets :

(a) Rs. 30          (b) Rs. 32          (c) Rs. 36           (d) Rs. 40

 

  1. of a pole is coloured red, white, blue, black, violet, yellow and the rest is green. If the length of the green portion of the pole is 12.08 metres, then the length of the pole is :

(a) 16 m             (b) 18 m             (c) 20 m             (d) 30 m

 

  1. In an examination, a student was asked to find of a certain number. By mistake, he found of that number. His answer was 150 more than the correct answer. The number is :

(a) 180               (b) 240               (c) 280               (d) 290

 

Answer Key:

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