Question

2. 144 L of liquid P and 216 L of liquid Q are to be packed in containers of the same
size. The minimum number of containers required are
(a) 6
(b) 5
(c) 10
(d) 15
3. Three numbers are in the ratio 3:4:5 and their LCM is 1200. Then, their HCF
is
(a) 40
(b) 60
(d) 120
(c) 20
With Reason​

Answer 1

1. a
2. c

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Answer 2

Answer:

3.(c) 20

Step-by-step explanation:

3. Let the numbers are 3N, 4N and 5N.

Where, N = HCF

Then, LCM = 60N

According to the question,

60N = 1200

∴ N = 20

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