find out the length of longest rod which can measure the length of field of length 120m 150m 180m respectively
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Step-by-step explanation:
Length of rod should be 30m to measure fields of lengths 120m 150m and 180m
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Answer:
120 = 2×2×2×3×5 = 2³×3¹×5¹
150 = 2×3×5×5 = 2¹×3¹×5²
180 = 2×2×3×3×5 = 2²×3²×5¹
HCF = 2¹×3¹×5¹
= 30
so the longest rod is 30m long.
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