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LCM and HCF

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  1. A number between 1000 and 2000 which when divided by 30, 36 and 80 gives a remainder 11 in each case is
    1. 1451
    2. 1641
    3. 1712
    4. 1523
Correct Option: A

We find LCM of 30, 36 and 80.

∴ LCM = 2 × 2 × 3 × 3 × 4 × 5 = 720
∴ Required number = 2 × 720 + 11 = 1440 + 11 = 1451


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