Question

2
12
Exercise
Ed the LCM of the numbers by prime factorization:
(a) 25, 30 and 40 (b) 42, 36 and 2. (C) 26, 14 and 9| (d) 36, 60, 84 and 90
Find the LCM of the numbers by division
(a) 21, 63 and 105 (b) 64,96 ara 112 (c) 12, 18 and 90
(d) 45, 35 and 2
3. Find the LCM of the numbers:
(a) 5. 45. 125 and 225 (b) 44, 126, 198 and 280 (C) 12,36, 16, 24 and 32
(d) 18.28, 35, 60 and 100(e) 4.6,8. 2. 18 and 90
(1) 16, 90, 91, 280 and 455,
4. Find the LCM of the numbers by finding their HCF:
(a) 64 and 80 (b) 110 and 88 (C) 420 and 360 (d) 204 and 255
5. Fill in the blanks:
(a) The HCF of two numbers is 4, their LCM is 24 and one of the numbers is 8. The
other number =
(b) The HCF of two numbers is 5, their LCM is 165 and one of the numbers is 55. The
other number =
WORD PROBLEMS
Examples 1. Find the smallest number of four digits which when divided by 6, 8, 12 and 20
leaves (i) no remainder, (ii) the remainder 5 in every case.
The smallest number which​

Answer 1

Answer:

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