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  1. The least number which when divided by 16, 18, 20 and 25 leaves 4 as remainder in each case but when divided by 7 leaves no remainder is
    1. 17004
    2. 18000
    3. 18002
    4. 18004
Correct Option: D

LCM of 16, 18, 20 and 25 = 3600
∴ Required number = 3600K + 4 which is exactly divisible by 7 for certain value of K.
When K = 5,
Required number = 3600 × 5 + 4 = 18004 , which is exactly divisible by 7.



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