Class 6 Mathematics Exam

1. Determine H.C.F. using prime factors: (a) 18, 27

2. Determine H.C.F. by division method: (a) 48, 64

3. Determine L.C.M. using prime factors: (a) 10, 15

4. Determine L.C.M. by Euclid’s method: (a) 12, 18

5. What is the greatest number which divides 40 and 60 with the remainder 0 every time?

6. What is the greatest number which divides 135 and 225 with the remainder 15 every time?

7. What is the greatest number which divides 45, 75, and 120 with remainders 5, 10, and 15 respectively?

8. Which smallest number will have 4 as the remainder in every case when divided by 6, 10, 14, and 18?

9. Which smallest number will have 7, 13, and 19 as remainders respectively when divided by 20, 25, and 30?

10. What is the smallest number which is exactly divisible by 8, 9, and 12?

Instructor
BENOZIR AHAMED HRIDOY
University Of Rajshahi
B.Sc. in Applied Mathematics