What comes next in this pattern?
21, 28, 35, 42, ___
🔢 Maths · Class 3 · 2026-27
A full IMO Class 3 practice paper: 35 questions for 40 marks in 60 minutes, in the same 4 sections and order as the SOF paper. Take it here with an instant score — no login, no sign-up — or print it with an OMR sheet and the answer key. Free, with no ads.
Tap an answer for each question. The 60-minute clock starts at your first answer; press Finish and mark at the bottom when you are done, and every answer is explained.
What comes next in this pattern?
21, 28, 35, 42, ___
In a code language, DOG is written as EPH. How is CAT written in the same code?
Anaya has 4 shirts and 3 pairs of shorts. In how many different ways can Anaya wear one shirt with one pair of shorts?
Which figure does not belong with the other three?
Look carefully at the figure. Which of these shapes is NOT hidden in it?
How many triangles are there in the given figure?
A king walks from A to B along the paths, moving only to the right or downwards. In how many different ways can he reach B?
Which number does not belong with the other three?
Which shape comes next in the pattern?
The letters below are numbered 1 to 5. Choose the option in which they are arranged to make a meaningful English word.
S S A R G 1 2 3 4 5
How much money is shown here altogether?
Which number is the same as 9000 + 100 + 70 + 3?
What is 1/2 of 8?
Look at the calendar. Which day of the week is the 13th of March?
Add: 4,640 + 4,602
Which group has only even numbers in it?
Round 4,275 to the nearest ten.
Which of these solids can roll?
In the number 7,568, what is the place value of the digit in the hundreds place?
A cricket match started at 7:55 and finished at 10:40. How long did it last?
Vihaan's story book has 303 pages. Vihaan has read 61 pages. How many pages are left to read?
One packet of biscuits weighs 350 g. What do 3 such packets weigh?
Vihaan buys 2 chocolates and 1 pencil. One chocolate costs ₹ 60 and one pencil costs ₹ 25. How much does Vihaan pay altogether?
Vihaan buys a book for ₹ 62 and pays with a ₹ 100 note. How much change should Vihaan get back?
Anaya has four number cards: 1, 9, 6, 2. Which of these numbers can Anaya make by using every card exactly once?
A bus leaves at 6:30 and the journey takes 2 hours 25 minutes. At what time does the bus reach its stop?
Saanvi has ₹ 240 and spends 1/4 of it. How much does Saanvi spend?
Aditi shares 40 sweets equally among 4 friends. How many sweets does each friend get?
In this pictograph one picture stands for 2 flowers. How many flowers for Tulip?
Saanvi's family uses 200 ml of milk every day. How much milk do they use in 5 days?
Look at the calendar for November. What is the date of the 3rd Friday of the month?
Look at the bar graph. How many more fruits are there for Thu than for Wed and Mon together?
Each row of the matrix follows the same rule. Which figure belongs in the empty box?
Look at the two figures carefully and choose the correct statement.
In 3,865, find the difference between the place value of the digit in the tens place and the place value of the digit in the ones place.
1. (B) 2. (B) 3. (C) 4. (D) 5. (B) 6. (A) 7. (B) 8. (D) 9. (C) 10. (C) 11. (D) 12. (A) 13. (A) 14. (D) 15. (A) 16. (D) 17. (A) 18. (C) 19. (A) 20. (C) 21. (C) 22. (D) 23. (D) 24. (C) 25. (C) 26. (A) 27. (C) 28. (C) 29. (B) 30. (A) 31. (C) 32. (A) 33. (B) 34. (D) 35. (A)
Each number is 7 more than the one before, so after 42 comes 42 + 7 = 49.
Every letter moves 1 place forward in the alphabet, so CAT becomes DBU.
Each of the 4 shirts can go with any of the 3 pairs of shorts: 4 × 3 = 12.
Three of the figures have 4 sides. The triangle has 3, so it is the odd one.
The figure is built from these four shapes: pentagon, octagon, rectangle, square. There is no triangle anywhere in it.
The base is cut into 3 pieces. Picking any two of the 4 marks on the base gives one triangle, and there are 6 ways to do that.
Every walk uses 2 steps to the right and 3 steps down. Counting the different orders they can come in gives 10 ways.
6, 18, 12 are all in the 3 times table, but 37 is not.
The pattern repeats every 3 shapes, so the next one is a triangle.
Reading the letters in the order 5, 4, 3, 1, 2 spells GRASS.
Count the notes first and then the coins: 3 × ₹ 100 + 1 × ₹ 10 + 1 × ₹ 5 + 2 × ₹ 2 = ₹ 319.
9 thousands, 1 hundreds, 7 tens and 3 ones make 9,173.
Split 8 into 2 equal groups: 8 ÷ 2 = 4 in each group.
The 1st of March is a Sunday, so counting down the column the 13th is a Friday.
Add the ones, then the tens, then the hundreds, carrying each time ten is reached: 4,640 + 4,602 = 9,242.
Every number in 14, 32, 6 divides exactly by 2. Each of the other groups has one number that does not.
4,275 lies between 4,270 and 4,280, and it is nearer to 4,280.
A cylinder has a curved surface, so it rolls. The other three have only flat faces.
The digit in the hundreds place is 5, and each one there is worth 100. So its place value is 5 × 100 = 500.
From 7:55 to 10:40 is 2 hours 45 minutes.
Take the pages already read away from the whole book: 303 − 61 = 242.
3 × 350 g = 1,050 g, and 1,000 g make 1 kg, so that is 1 kg 50 g.
2 chocolates cost 2 × ₹ 60 = ₹ 120. Adding the pencil: ₹ 120 + ₹ 25 = ₹ 145.
Take the cost away from what was paid: ₹ 100 − ₹ 62 = ₹ 38.
1,926 uses the digits 1, 9, 6, 2 and nothing else — the other three each need a card Anaya does not have.
Add the hours first: 6:30 + 2 hours is 8:30. Then add 25 minutes to reach 8:55.
One quarter of ₹ 240 is ₹ 240 ÷ 4 = ₹ 60, and 1 of those is ₹ 60.
Sharing equally is dividing: 40 ÷ 4 = 10 sweets each.
The Tulip row has 2 whole pictures. Each whole picture is worth 2, so that is 4 flowers.
5 × 200 ml = 1,000 ml, and 1,000 ml make 1 litre, so that is 1 l.
The first Friday falls on the 2nd. Each Friday after that is 7 days later, so the 3rd one is the 16th.
Wed and Mon together have 20 + 25 = 45. Thu has 90, which is 90 − 45 = 45 more.
Going across a row the figure turns a quarter turn each time, so after two turns the last one has been turned halfway round — an arrow upside down.
Figure P has 5 of 9 parts shaded and figure Q has 5 of 8. Checking each statement against the pictures, only one is right: The unshaded fraction of figure P is 4/9.
The two place values are 60 and 5, so the difference is 60 − 5 = 55.
This paper stays the same so it can be printed and shared. In the app every IMO Class 3 question is new, the next one is picked to be just hard enough, and mistakes come back until they stick. Still free.
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