Page 106 - Math Genius C4

E:\Working\Orange_Education\Math_Genius_4\Open_Files\Chap-05
\ 30-Sep-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

(c) A multiple of 5, 6 and 10, greater than 40 but less than 80, is ____.

(d) A multiple of 5 and 2 which is 2 more than the third multiple of 6, is____.

(e) A multiple of 3 but not of 6 and 9, greater than 22 but less than 37, is ____.

4. Answer the following questions.

(a) What is the thirteenth multiple of 2?

(b) What is the greatest 2-digit multiple of 3?

(c) What is the greatest factor of the greatest 5-digit number?
(d) What is the smallest multiple of the greatest 5-digit number?

5. Name the factors of 1000 that are not multiples of 50.
6. Which multiple of 9 is equal to the sum of its first 3 multiples?

7. How many pairs of 2-digit prime numbers are there which have the same digits,

such as 13 and 31?

8. Rohan, a worker delivers newspapers only to the houses with numbers that are

multiples of 6. Rehan, a junkyard dealer, collects scrap only from the houses
with numbers that are multiples of 3. List the house numbers that both of them

visit. COMpETENCY-BASED QUESTiON

184 262 312 402 444 501 612

Experiential Learning
Life Skills Social Emotional Learning
Three friends Simran, Vishal and Shelly are volunteers in an old age home. They have
volunteered to paint the rooms which are numbered from 15 to 200. Simran has to
work in all the rooms. Vishal has to work in rooms where the room number is a multiple
of 3. Shelly has to work in rooms where the room number is a multiple of 5.

1. In which rooms will they all work together?

2. Vishal decided to work daily, Simran volunteered to work every alternate day while
Shelly volunteered to paint every third day. If they started to paint on 31 August,
list the dates in September when the three will work together at the old age home.

104 Mathematics-4