Math, asked by adnankaifpktgmailcom, 2 days ago

Find the least number which on decreasing by 20 is exactly divisible by 18, 21, 28 and 30
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Answers

Answered by f1ree2fire3
1

Answer:

Find the least number which on decreasing by 20 is exactly divisible by 18, 21, 28 and 30. = 2 × 2 × 3 × 3 × 5 × 7 = 1260. Hence, the required number = 1260 + 20 = 1280. 13.

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