Scholar Tests · Sample paper
Junior maths challenge-style paper, Year 7
25 questions · 135 marks · 60 minutes · no negative marking
Name ______________________ Date ____________
Questions 1 to 15
Questions 1 to 15, 5 marks each. Circle the letter of the best answer.
- 1.
Each of these three numbers has one digit hidden by a question mark: 54?, 69?, 96?. The average of the three numbers is 734. What is the sum of the three hidden digits?
- A12
- B13
- C3
- D14
- E1
- 2.
At 8:30 pm two machines start a cycle in the factory together. After that, the first starts a cycle every 4 minutes and the second every 14 minutes. At what time will they next start a cycle together?
- A8:32 pm
- B8:58 pm
- C8:44 pm
- D8:59 pm
- E8:48 pm
- 3.
Milo is heavier than Carlos. Hana is heavier than Milo. Pia is heavier than Hana. Carlos is heavier than Theo.
Who is the heaviest?- AMilo
- BTheo
- CHana
- DPia
- ECarlos
- 4.
Three consecutive prime numbers add up to 97. (Consecutive primes come straight after one another, with no other prime between them.) What is the largest of them?
- A31
- B41
- C37
- D32
- E29
- 5.
In the triangle below, what is the size of the angle marked x?
- A130°
- B105°
- C50°
- D125°
- E230°
- 6.
Find the value of x.
4x − 15 = 2x − 7- A8
- B3
- C4
- D5
- E6
- 7.
Find the missing number marked with the asterisk (*) in the magic square below. (Every row, column and diagonal adds to the same total.)
- A23
- B20
- C21
- D22
- E19
- 8.
A rectangle is made from 30 square tiles, with none left over. A square counts as a rectangle, and a rectangle that is only turned on its side is still the same rectangle. How many different rectangles can be made?
- A3
- B5
- C7
- D4
- E8
- 9.
A board is ruled into a 3 by 3 grid of small squares. How many squares of any size can be found on it, counting the small ones and every larger square they make up?
- A9
- B14
- C16
- D6
- E36
- 10.
In a youth group with 35 members, 6 swim in a squad, 23 sing in the choir and 4 do both. How many do neither?
- A6 members
- B29 members
- C12 members
- D10 members
- E2 members
- 11.
Wes, Raj, Lena, Fay and Eli are playing, and one of them has the ball.
Wes says: "Fay does not have the ball."
Raj says: "Wes has the ball."
Lena says: "Wes has the ball."
Fay says: "Wes does not have the ball."
Eli says: "I have the ball."
Exactly one of them is telling the truth. Who has the ball?- AEli
- BWes
- CFay
- DLena
- ERaj
- 12.
33 ÷ 3 × 7 is the same as which of these?
- A(33 + 7) ÷ 3
- B33 × 3 ÷ 7
- C33 × 7 ÷ 3
- D3 ÷ 33 × 7
- E33 ÷ (3 × 7)
- 13.
A jar holds 12 counters numbered 1 to 12. Counters 1 to 6 are pink, 7 to 9 are brown and 10 to 12 are silver. One counter is taken out without looking. What is the chance that it is silver and its number is a factor of 40?
- A1/4
- B1/2
- C1/3
- D3/4
- E1/12
- 14.
What fraction of the big square is shaded?
- A7/8
- B29/32
- C7/16
- D13/16
- E15/16
- 15.
Two whole numbers multiply together to make 1372, and one of them is 7 times the other. What is the smaller number?
- A172
- B17
- C14
- D196
- E98
Questions 16 to 25
Questions 16 to 25, 6 marks each. Circle the letter of the best answer.
- 16.
Ethan rolls a die 15 times and gets: 3, 6, 5, 1, 4, 6, 4, 3, 1, 1, 5, 5, 1, 5, 4. From these results, what is the experimental probability of rolling a number greater than 4?
- A1/3
- B3/5
- C7/15
- D2/3
- E2/5
- 17.
Square tiles are joined edge to edge to make flat shapes. A shape may be turned round to match another, but it may not be flipped over, so a shape and its mirror image count as two different shapes. How many different shapes can be made from five tiles?
- A17
- B12
- C19
- D7
- E18
- 18.
196 ÷ 7 is the same as which of these?
- A(140 ÷ 7) − (56 ÷ 7)
- B(140 ÷ 7) + (56 ÷ 7)
- C(7 ÷ 140) + (7 ÷ 56)
- D(140 ÷ 7) × (56 ÷ 7)
- E(196 ÷ 6) + (196 ÷ 1)
- 19.
How many lines of symmetry does this shape have?
- A0
- B3
- C2
- D7
- E1
- 20.
Hana, Uma, Raj, Carlos and Ivan are playing, and one of them has the ball.
Hana says: "Uma has the ball."
Uma says: "I do not have the ball."
Raj says: "Carlos does not have the ball."
Carlos says: "Raj has the ball."
Ivan says: "Raj has the ball."
Exactly one of them is telling the truth. Who has the ball?- ARaj
- BUma
- CHana
- DCarlos
- EIvan
- 21.
Use each of the digits 4, 3, 5, 9, 0 once to make the largest odd 5-digit number. What digit is in the thousands place?
- A3
- B0
- C9
- D5
- E4
- 22.
Four consecutive prime numbers add up to 420. What is the largest of them?
- A101
- B105
- C113
- D109
- E107
- 23.
Three different whole numbers multiply to 780 and add to 29. What is the largest of the three numbers?
- A390
- B13
- C16
- D10
- E6
- 24.
What is the highest common factor of 25, 30?
- A150
- B55
- C5
- D25
- E4
- 25.
In the drawing below, the two lines marked with arrows are parallel. What is the size of the angle marked x?
- A102°
- B132°
- C54°
- D126°
- E48°
Answers and working
Questions 1 to 15
- 1.A (12). The total is 3 × 734 = 2202. The visible parts make 2190, so the hidden digits are worth 12. Whatever way they fit, the digits add to 12.
- 2.B (8:58 pm). The smallest number that both 4 and 14 divide into is 28. So they meet again 28 minutes after 8:30 pm, which is 8:58 pm.
- 3.D (Pia). From heaviest to lightest, the order is Pia, Hana, Milo, Carlos, Theo. So the answer is Pia.
- 4.C (37). The primes 29, 31, 37 come one after another and add up to 97. The largest is 37.
- 5.C (50°). 180° − 55° − 75° = 50°.
- 6.C (4). Take 2x from both sides: 2x − 15 = -7. Add 15: 2x = 8. Divide by 2: x = 4.
- 7.C (21). The magic total is 3 × centre = 57. The diagonal through * gives 57 − 19 − 17 = 21.
- 8.D (4). Listing the rectangles with the smaller side first, 4 of them have an area of 30.
- 9.B (14). Take the sizes one at a time: a square of side k can sit in (3 − k + 1) × (3 − k + 1) positions. Adding those up from k = 1 to 3 gives 14, which on a square grid is just 1² + 2² + … + 3².
- 10.D (10 members). 6 + 23 − 4 = 25 do at least one, and the other 10 of the 35 do neither. So the answer is 10 members.
- 11.C (Fay). Try each child as the one with the ball and count the true statements. Only when Fay has it is exactly one statement true.
- 12.C (33 × 7 ÷ 3). 33 ÷ 3 × 7 = 77, and so does 33 × 7 ÷ 3.
- 13.E (1/12). Of the silver ones, 10 to 12, the ones whose number is a factor of 40: 10. That is 1 of the 12: 1/12.
- 14.A (7/8). The big square has 16 small squares. The shaded part is 14 squares. So 14 out of 16 is shaded: 7/8.
- 15.C (14). Call the smaller number n. The larger is 7n, so the two multiply to 7 × n × n = 1372. That makes n × n = 1372 ÷ 7 = 196, so n = 14 and the larger number is 98.
Questions 16 to 25
- 16.E (2/5). 6 of the 15 rolls were a number greater than 4, and 6/15 in simplest form is 2/5. So the answer is 2/5.
- 17.E (18). Listing every shape, with turned and flipped copies counted as the rules say, gives 18 shapes.
- 18.B ((140 ÷ 7) + (56 ÷ 7)). 196 = 140 + 56, so 196 ÷ 7 = (140 ÷ 7) + (56 ÷ 7), which is 28.
- 19.E (1). Only the folds that make both halves match count, so this shape has 1 line of symmetry.
- 20.D (Carlos). Try each child as the one with the ball and count the true statements. Only when Carlos has it is exactly one statement true.
- 21.D (5). The largest odd number from those digits is 95403. Its thousands digit is 5.
- 22.D (109). The primes 101, 103, 107, 109 come one after another and add up to 420. The largest is 109.
- 23.B (13). Only 6, 10 and 13 multiply to 780 and add to 29. The largest is 13: 13.
- 24.C (5). 25 = 5 × 5, 30 = 2 × 3 × 5. The primes they all share multiply to 5.
- 25.C (54°). The angle at D equals the angle at A (alternate angles), 48°, so x = 180° − 48° − 78° = 54°.
Written by Scholar Tests in the junior maths challenge's published shape. Not a past paper; we are not connected with the UK Mathematics Trust.