RPF SI · Arithmetic

Number system and simplification

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  • Q1 · Number system and simplification · MEDIUM

    What is the unit digit of 8^35 x 3^62 x 7^29?

  • Q2 · Number system and simplification · MEDIUM

    A number when divided by 143 leaves a remainder of 25. What will be the remainder when the same number is divided by 13?

  • Q3 · Number system and simplification · MEDIUM

    What is the largest four-digit number that is exactly divisible by each of 12, 18 and 30?

  • Q4 · Number system and simplification · MEDIUM

    What is the LCM of the fractions 2/3, 4/9 and 5/6?

  • Q5 · Number system and simplification · MEDIUM

    Simplify: 0.25 x 480 + 3/8 of 640 - 15% of 1,200

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