Series RTEQ.P. Code 86/-2/0
Roll No.
RTE LEARN · CBSE PATTERN 2026–27
MATHEMATICS
Unit test · Ch 3: Number Play
Time allowed : 40 MinutesMaximum Marks : 20
General Instructions :
Read the following instructions carefully and follow them :
(i)This question paper contains 10 questions. All questions are compulsory.
(ii)This question paper is divided into four sections – A, B, C and D.
(iii)In Section A, Question numbers 1 to 5 carry 1 mark each.
(iv)In Section B, Question numbers 6 to 7 are very short answer (VSA) type questions carrying 02 marks each.
(v)In Section C, Question numbers 8 to 9 are short answer (SA) type questions carrying 03 marks each.
(vi)In Section D, Question number 10 are long answer (LA) type questions carrying 05 marks each.
(vii)Draw neat figures wherever required. Take π = 22/7 wherever required, if not stated.
(viii)Use of calculators is not allowed.
SECTION A
This section comprises 5 questions of 1 mark each.
1.1
What is a prime number?
2.1
Write all prime numbers between 1 and 20.
3.1
What is the HCF of 12 and 18?
4.1
Is 1 a prime number? Give reason.
5.1
What is the LCM of 4 and 6?
SECTION B
This section comprises 2 very short answer (VSA) type questions of 2 marks each.
6.2
Find the HCF and LCM of 8 and 12 using prime factorisation.
7.2
What are co-prime numbers? Give two examples.
SECTION C
This section comprises 2 short answer (SA) type questions of 3 marks each.
8.3
A number is divisible by both 4 and 6. (a) What is the smallest such number greater than 1? (b) List 5 such numbers. (c) What pattern do you notice?
9.3
Three bells ring at intervals of 6, 8 and 12 minutes. If they all ring together at 9:00 AM, at what time will they next ring together? Show your working.
SECTION D
This section comprises 1 long answer (LA) type questions of 5 marks each.
10.5
Riya has 24 red flowers and 36 yellow flowers. She wants to make identical bouquets using all the flowers with no flowers left over. (a) What is the maximum number of bouquets she can make? (b) How many red and yellow flowers will be in each bouquet? (c) If she adds 12 more white flowers, how many white flowers per bouquet? (d) Write the prime factorisation of 24, 36 and 12. (e) What mathematical concept did you use?
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