Grade: 7 Mathematics Olympiad Qualifier Set: 2
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1 Grade: 7 Mathematics Olympiad Qualifier Set: Max Marks: 60 Test ID: Time Allotted: 40 Mins Instructions: Each question has four choices (A), (B), (C) and (D) out of which ONLY ONE is correct. Each question carries 2 Marks. There is no negative marking. The HCF of two numbers is 68 and their LCM is 242. If one of the numbers is 204, the other number is: A. 74 B. 742 C. 74 D x = 243, then x is equal to A. 4 B. 6 C. 5 D If MUSK is coded as 4686, then ZERO will be coded as: A. 05 B C. 83 D A bus from Sharjah leaves every thirty minutes from a bus stand. An enquiry clerk told a passenger that the bus had already left ten minutes ago, and the next bus will leave at 9: 35 a. m. At what time did the enquiry clerk give this information to the passenger? A. 9: 0 a. m. B. 8: 55 a. m. C. 9: 08 a. m. D. 9: 5 a. m. Page of 6
2 5. If P means 'division', T means 'addition', M means 'subtraction' and D means 'multiplication', then what will be the value of the expression 2 M 2 D 28 P 7 T 5? A. 30 B. 5 C. 5 D A student was asked to multiply a given number by 8. Instead, he divided the given 7 number by 8. His answer was 225 more than the correct answer. The given number is. 7 A. 8 B. 7 C. 64 D (p + q)(p + q) p 2 2pq q 2 equals. A. 2p 2 B. 2q 2 C. 4pq D A man travelled 3 of his journey by train, by a taxi, by a bus and the remaining km on foot. What is the length of his total journey? A. 290 km B. 320 km C. 350 km D. 380 km 9. If the sum of two positive numbers is 36 and one number x is double the other, then the equation is. x A. = 2 x+36 B. x 36 = x 2 x C. = 2 36 x = 2 D. 36 x x 0. ( xa x b) ab ( xb x c) bc x ( c x a) ca =? A. B. x abc C. xab+bc+ca D. None of these Page 2 of 6
3 . The product of the 9 fractions ( 2 ) ( 3 ) ( 4 ).. ( 0 ) =. A. 0 B. 9 C. 0 D 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 The value of x in ( 3 5 )3 ( 3 5 ) 6 = ( 5 3 ) 2x is. A. 0 B. C. D Aisha is folding together an open-topped cardboard box using this net. What is the surface area of the outside of the box? A. 47 m 2 B. 54 m 2 C m 2 D m 2 5. Three numbers are in the ratio 3: 4: 6 and their product is 944. The largest of these numbers is? A. 6 B. 2 C. 8 D. None of these Page 3 of 6
4 6. Which fraction is added to 2 of ( 7 2 ) 3 4 to make it a complete whole number? A. 47 B. 67 C. 52 D The traffic police recorded the speed (in km/h) of 8 cars as 47, 53, 49, 60, 39, 42, 48 and 52. Later on, an error in the recording instrument was found. Find the correct mean speed of the cars if the instrument recorded 6 km/h more in each case. A km/h B km/h C km/h D km/h 8. Salim purchased 25 stools at the rate of AED 20 per stool. The transport expenditure was AED 250. He paid octroy at the rate of AED 2 per stool and coolie charges were AED 250. What should be the selling price of each stool, if he wants a profit of 0% A. AED B. AED 38 C. AED 40 D. AED A man runs round a circular field of radius 50 m at a speed of 2 km/hr. What time is taken by the man to complete 20 round of the field? A. 30 minutes B. 32 minutes C. 34 minuted D minutes 20. If P = 2x 2 + 3xy 5y 2, Q = 5x 2 + 2xy + 3y 2 and R = 3x 2 + 5xy 2y 2, then the value of P + Q R is A. 6x 2 + 0xy 4y 2 B. 4x 2 + 6xy 4y 2 C. 6x 2 + 4xy 6y 2 D. 0 Page 4 of 6
5 2. Which one of the following options is the correct value of the expression ax+by+cz az+bx+cy, if a =, b = 2, c =, x =, y = 2 and z = 3? A. 0 B. 2 C. 2 D Select the mirror image of : 2:05 A. 5:02 B. 50:2 C. 20:5 D. 5: Study the given numbers carefully. 427, 58, 839, 275, 589 Which of the following numbers will be obtained, if the second digit of the greatest number is subtracted from the second digit of the least number, after adding five to each of the above numbers? A. B. 2 C. 3 D When we divide a number say x by 6 it leaves a remainder 3. When we divide the square of the same number by 6, what will be the remainder? A. 0 B. 3 C. 6 D The temperature at 2 noon was 0 C and it is falling 2 C per hour until midnight. At what time, would the temperature be 8 C below zero? A. 6 P. M. B. 7 P. M. C. 8 P. M. D. 9 P. M. 26. Due to fall in manpower, the production in a factory decreases by 25%. By what percent should be working hour be increased to restore the original production? A % B % C % D % Page 5 of 6
6 27. Find the value of =? A B C D A man sold an article for AED 630 and he lost 0% on it. What is the cost price of the article? A. AED 700 B. AED 720 C. AED 680 D. AED If the mean and mode of a given data is 5 and 48 respectively. What is its median? A. 48 B. 49 C. 50 D If all sides of a hexagon is increased by 2%, find the percentage increase in its area. A. 6.06% B. 4.04% C. 0.05% D. 5.08% Page 6 of 6
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