Yarışma Sınavı A ) 60 B ) 80 C ) 90 D ) 110 E ) 120. A ) 4(x + 2) B ) 2(x + 4) C ) 2 + ( x + 4) D ) 2 x + 4 E ) x + 4

Ebat: px

Şu sayfadan göstermeyi başlat:

Download "Yarışma Sınavı A ) 60 B ) 80 C ) 90 D ) 110 E ) 120. A ) 4(x + 2) B ) 2(x + 4) C ) 2 + ( x + 4) D ) 2 x + 4 E ) x + 4"

Can Togan
6 yıl önce
İzleme sayısı:

1 1 4 The price of a book is first raised by 20 TL, and then by another 30 TL. In both cases, the rate of increment is the same. What is the final price of the book? Tim ate four more cookies than lice. Bob ate twice as many cookies as Tim. If x represents the number of cookies lice ate, which expression represents the number of cookies Bob ate? 4(x + 2) 2(x + 4) 2 + ( x + 4) 2 x + 4 x Castel and Gabriella are selling pies for a school fundraiser. Customers can buy apple pies and lemon meringue pies. Castel sold 6 apple pies and 4 lemon meringue pies for a total of $80. Gabriella sold 6 apple pies and 5 lemon meringue pies for a total of $94. What is the cost of each one of the apple pies? $14 $10 $4 $16 $18 1

7 Derviş collects baseball cards. t his request, Patricia decides to triple Derviş's quantity of baseball cards. Canan takes half of Derviş's baseball cards.

2 7 Derviş collects baseball cards. t his request, Patricia decides to triple Derviş's quantity of baseball cards. Canan takes half of Derviş's baseball cards. In the end, he has 12 baseball cards. How many baseball cards did Derviş originally have? x and y are integers x + y < 11, and x > 6 What is the smallest possible value of x - y?

3 13 14 (3x + 2) (2x - 5) = ax² + kx + n. 15 What is the value of a - n + k? Set contains all the even numbers between 2 and 50 inclusive. Set B contains all the even numbers between 102 and 150 inclusive. What is the difference between the sum of elements of set B and that of set? The average of 5 consecutive integers starting with m as the first integer is n. What is the average of 9 consecutive integers that start with m+2? m + 4 m + 5 n + 6 n + 3 n The fifth term in a sequence of numbers is 19 and each number after the first number in the sequence is 3 less than the number immediately preceding it. What is the second number in the sequence?

4 What is the measure of the radius of the circle that circumscribes a triangle whose sides measure 9, 40 and 41?

6 a and n are two positive integers satisfying 6! + 7! = 2 n.a What is the maximum value that n can take? For what values of n is (mod n)? n=1, 2, 4, 5, 8, 10, 20, 40 n=1, 3, 5, 7 n=1, 2, 4, 5, 8, 10, 20 n=1, 5, 25 n=1, 5, 7, 35 6

7 36 38 If E is defined to be drawing a black card out of a normal 52 card deck and F is defined to be drawing a heart, what is the probability of either E or F coming true? 5/8 1 2/3 1/2 3/ n is an integer chosen at random from the set {5, 7, 9, 11 } p is chosen at random from the set {2, 6, 10, 14, 18}. What is the probability that n + p = 23? fair coin is tossed repeatedly. What is the probability that we obtain a total of two tails before we obtain a total of three heads? 11/16 5/8 1/2 9/16 3/4 7

8 41 Two coins are removed at random and without replacement from a box that contains 3 nickels, 2 dimes and 1 coin whose value is 0. What is the probability that the value of one of the two removed coins is five cents more than the value of the other removed coin? 1/2 2/5 7/15 1/3 3/5 42 How many permutations of the letters of the word BNN? In how many ways can 5 books be arranged on a shelf? How many integers greater than or equal to zero and less than 1000 are not divisible by 2 or 5?

52 The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group. What is the average age of the two new students who joined the group?

10 52 The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group. What is the average age of the two new students who joined the group? 44 years 30 years 32 years 22 years None of these 54 The average wages of a worker during a fortnight comprising 15 consecutive working days was $ 90 per day. During the first 7 days, his average wages was $ 87/day and the average wages during the last 7 days was $ 92 /day. What was his wage on the 8 th day? $ 97 $ 92 $ 83 $ 90 $ What is the relationship between the independent and dependent variables in the scatter plot shown above? negative correlation no correlation undefined correlation positive correlation perfect correlation 55 In a class of 40 students, 12 enrolled for both English and German. 22 enrolled for German. If the students of the class enrolled for at least one of the two subjects, then how many students enrolled for only English and not German? In a city, three daily newspapers X,Y,Z are published. 42% of the people in that city read X,51% read Y, 68% read Z. 30% read X and Y, 28% read Y and Z, 36% read X and Z, 8% do not read any of the three newspapers. Find the percentage of persons who read all three papers

57 In a group of 1000 people, there are 750 people who can speak Turkish and 400 who can speak English. How many can speak onlyturkish if every person can speak at least one of these two languages?

11 57 In a group of 1000 people, there are 750 people who can speak Turkish and 400 who can speak English. How many can speak onlyturkish if every person can speak at least one of these two languages? Line l contains the points (3,1) and (4,4). If line k is a different line, parallel to line l in the same coordinate plane, which of the following could be the equation of line k? y = 3x - 8 y = 3x + 1 y = 1/3x - 3 y= -3x - 8 y = -8x

12 TEST BİTTİ CEVPLRINIZI KONTROL EDİNİZ 64 Which of the following statements holds for all 2 by 2 matrices, B, and C? (B + C) = B + C B = B If B = C, then B = C. If B = 0, then = 0 or B = 0. all of the above 12

Benzer belgeler

108 0. How many sides has the polygon?

108 0. How many sides has the polygon? 1 The planet Neptune is 4 496 000 000 kilometres from the Sun. Write this distance in standard form. 44.96 x 10 8 km 4.496 x 10 8 km 4.496 x 10 9 km 4.496 x 10 10 km 0.4496 x 10-10 km 4 Solve the simultaneous