Question 129

How many such pairs of digits are there in the number 59126874 each of which has as many digits between them descending order among them within the number ?

Solution

The original number is: 59126874
On writing the number in descending order of digits, we have 98765421
So writing these numbers one below the other
59126874
98765421
So we can see that these pair of digits have same number of digits between them as in the original sequence
12, 71, 96
Thus we have 3 such pairs, thus the answer is option 4.

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SBI Clerk ES 22-11-2009

How many such pairs of digits are there in the number 59126874 each of which has as many digits between them descending order among them within the number ?

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