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Question

How many zeroes are there at the end of the following product? 

1 x 5 x 10 x 15 x 20 x 25 x 30 x 35 x 40 x 45 x 50 x 55 x 60

The correct answer is

10

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Important Questions from Number System

  1. What is the value of 1 2 + 2 2 + 3 2 + ......21 2 ?

  2. Find the greatest number which divides 36, 64 and 92 in such a way that in each case same remainder is left.

  3. Which sequence is correct to represent the hierarchical chain of number system?

    (Where N - Natural Numbers

    W - Whole Numbers

    Q - Rational Numbers

    Z - Integers)

  4. The difference of the place value and the face value of 5 in 26549 is :

  5. What must be added to 45680 to make it exactly divisible by 9?

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