(8) What is the least number Which after increasing by 8 is exactly divisible by
By 18, 28 and72 ?
(a) 496
(c) 504<

1 thought on “(8) What is the least number Which after increasing by 8 is exactly divisible by<br />By 18, 28 and72 ?<br />(a) 496<br />(c) 504<”

1. Answer:

   (c)504

   Step-by-step explanation:

   18=2×3×3

   18=2×3×3 28=2×2×7

   18=2×3×3 28=2×2×772=2×2×2×3×3

   18=2×3×3 28=2×2×772=2×2×2×3×3LCM=2×2×2×3×3×7=504

   18=2×3×3 28=2×2×772=2×2×2×3×3LCM=2×2×2×3×3×7=504∴504 is the least number which is divisible by 18, 28 and 72.

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