5. The third digit is two more than the first digit; the fourth digit is two more than the second digit; the second digit is five less than the third digit. Which two numbers below are being described?
3164,4163,6387,1537,6486,5739,2547,7496,3456,5373
Answers
7496 is the correct answer of this question ......................................
I hope it will help you........
Two numbers which are being described in ghe question are 4163 and 7496.
• According to the given conditions,
3rd digit - 1st digit = 2
4th digit - 2nd digit = 2
3rd digit - 2nd digit = 5
• For 3164,
1st digit = 3, 3rd digit = 6
Difference = 6 - 3 = 3
Thus, 3164 doesn't satisfy the given conditions.
• For 4163,
1st digit = 4, 3rd digit = 6
Difference = 6 - 4 = 2
2nd digit = 1, 4th digit = 3
Difference = 3 - 1 = 2
Difference between 3rd and 2nd digit = 6 - 1 = 5
Thus, 4163 satisfies the given conditions.
• For 6387,
Ist digit = 6, 3rd digit = 8
Difference = 8 - 6 = 2
2nd digit = 3, 4th digit = 7
Difference = 7 - 3 = 4
Thus, 6387 doesn't satisfy the given conditions.
• For 1537,
Ist digit = 1, 3rd digit = 3
Difference = 3 - 1 = 2
2nd digit = 5, 4th digit = 7
Difference = 7 - 5 = 2
Difference between 3rd and 2nd digit = 3 - 5 = -2
Thus, 1537 doesn't satisfy the given conditions.
• For 6486,
Ist digit = 6, 3rd digit = 8
Difference = 8 - 6 = 2
2nd digit = 4, 4th digit = 6
Difference = 6 - 4 = 2
Difference between 3rd and 2nd digit = 8 - 4 = 4
Thus, 6486 doesn't satisfy the given conditions.
• For 5739,
Ist digit = 5, 3rd digit = 3
Difference = 5 - 3 = 2
2nd digit = 7, 4th digit = 9
Difference = 9 - 7 = 2
Difference between 3rd and 2nd digit = 3 - 7 = -4
Thus, 5739 doesn't satisfy the given conditions.
• For 2547,
Ist digit = 2, 3rd digit = 4
Difference = 4 - 2 = 2
2nd digit = 5, 4th digit = 7
Difference = 7 - 5 = 2
Difference between 3rd and 2nd digit = 4 - 5 = -1
Thus, 2547 doesn't satisfy the given conditions.
• For 7496,
Ist digit = 7, 3rd digit = 9
Difference = 9 - 7 = 2
2nd digit = 4, 4th digit = 6
Difference = 6 - 4 = 2
Difference between 3rd and 2nd digit = 9 - 4 = 5
Thus, 7496 satisfies the given conditions.
• For 3456,
Ist digit = 3, 3rd digit = 5
Difference = 5 - 3 = 2
2nd digit = 4, 4th digit = 6
Difference = 6 - 4 = 2
Difference between 3rd and 2nd digit = 5 - 4 = 1
Thus, 3456 doesn't satisfy the given conditions.
• For 5373,
Ist digit = 5, 3rd digit = 7
Difference = 7 - 5 = 2
2nd digit = 3, 4th digit = 3
Difference = 3 - 3 = 0
Thus, 5373 doesn't satisfy the given conditions.