HCF and LCM Worksheet-4

HCF and LCM Worksheet-4

1. What is the G.C.F of two consecutive odd numbers?

(a) 2                    (b) 3                    (c) 9                    (d) 1

2. The two bags of sugar weight 75 kg and 90 kg. What is the maximum weight that can measure the weight of the two bags of sugar exact number of time?

(a) 15 kg             (b) 90 kg            (c) 100 kg          (d) 75 kg

3. Find the numbers whose G.C.F. is 18.

(a) 144, 198       (b) 132, 246      (c) 436, 244      (d) 260, 128

4. Jill is getting remainder 2 and 3 while dividing 258 and 323 by a number respectively. What is the largest number she is using as divisor?

(a) 16                  (b) 128               (c) 64                  (d) 32

5. What is the G.C.F. of 136, 170 and 255?

(a) 1                     (b) 17                  (c) 15                   (d) 13

6. Two water tanks contain 160 liters and 172 liters of water. What is the capacity of the largest container that can be used to completely empty the water in both tanks in exact number of time?

(a) 6 liters          (b) 2 liters         (c) 8 liters          (d) 4 liters

7. What is the largest divisor that can divide 550, 955 and 1255 leaving remainder 10?

(a) 15                  (b) 25                  (c) 18                  (d) 32

8. Sharon has two colors of marbles, red and blue. She has total 36 marbles. Number of red marbles is more than the number of blue marbles. The G.C.F. of two colors of marbles is 6. How many marbles are blue?

(a) 12                  (b) 6                    (c) 10                  (d) 4

9. What is the G.C.F. of 1100, 2100 and 3300?

(a) 1000             (b) 150                (c) 100               (d) 110

10. The length and width of a carpet are 825 cm and 625 cm. The longest tape  that can measure the carpet exactly is ____.

(a) 20 cm.         (b) 25 cm.           (c) 35 cm.          (d) 50 cm.

Answer Key:

1. (d)
2. (a)
3. (a)
4. (c)
5. (b)
6. (d)
7. (a)
8. (b)
9. (c)
10. (b)