Number System Facts and Problems

Which of the following numbers is divisible by 2?

• 178653

• 164857

• 176485

• 178560

Simplify the expression using BODMAS rule:: (3/2) of (4/7) {(10 × 3) - (8 × 2)}

• 6

• 12

• 18

• 14

The product of 40 odd numbers is

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The six digit number 54321A is divisible by 9 where A is a single digit whole number. Find A.

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Find the greatest three number which is multiple of 7.

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Find the greatest 6-digit number, which is a multiple of 12.

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Find the smallest three number which is a multiple of 7.

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Simplify the expression using BODMAS rule (3/7) of (4/5) of 20 (252 - 242)

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Simplify the expression using BODMAS rule (105 + 206) - 550 ÷ 52 + 10

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The digits of a two-digit number are in the ratio of 2 : 3 and the number obtained by interchanging the digits is bigger than the original number by 27. What is the original number?

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