Find the HCF of the following numbers: (a) 18, 48 (b) 30, 42 (c) 36, 84 (d) 34, 102 (e) 91, 112, 49 (f) 18, 54, 81 2
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Answer:
a)18=2×3×3
48=2×2×2×2×3
hcf=6
b)30=2×3×5
42=2×3×7
hcf 6
36=2×2×3×3
84=2×2×3×7
hcf12
d)34=2×17
102=2×3×17
hcf 34
91=13×7
112=2×2×2×2×49=7×7
hcf 7
18=2×3×3
54=2×3×3×3
812=2×2×7×29
hcf 2
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Answer:
a. HCF of 18 and 48 is 6.
b. HCF of 30 and 42 is 6.
c. The HCF of 36 and 84 is 12.
d. The HCF of 36 and 84 is 12.
e. The HCF of 91, 112, and 49 is 7
f. HCF of 18, 54 and 81 is 3 × 3 = 9.
hope it helps u !!
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