ATM pin puzzle | Here is answer to the popular WhatsApp puzzle

Solving puzzles is one of things people are doing during lockdown. You might have received many puzzles on WhatsApp or or social media applications. One such trendy puzzle is about a housewife who forgot her bank ATM pin. quiz is also kwn as 'ATM pin puzzle'. puzzle consists of some math calculations. If you do t kw about puzzle or if you want to confirm your answer, here is question and answer to 'ATM pin puzzle'.

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ATM pin puzzle question

A housewife forgot her bank ATM pin, which is a four-digit number. Luckily she remembered some hints on how to recall pin. clues were that first digit is half of 2nd. sum of 2nd and 3rd is 10. 4th is equal to 2nd plus 1. sum of all digit is 23. What is ATM pin?

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ATM pin puzzle answer

• It is given that first digit is half of second digit which also means second digit is double of first digit.
• Let us assume, first digit be x
• refore, second digit will be 2x.
• sum of second and Third digit = 10
• 2x + 3rd digit = 10
• 3rd digit = 10 - 2x
• w, as mentioned 4th digit is equal to 2nd plus 1
• 4th digit = 2nd digit + 1
•         4th digit   = 2x + 1
• w we have, all four digits of a number = x, 2x, 10-2x and 2x+1
• Given Sum of all digits = 23
• x + 2x + 10 - 2x + 2x + 1 = 23
• 3x + 11 = 23
• 3x = 23 - 11
• 3x = 12, x = 4
• refore, Four digits are 4, 8, 2, 9
• Answer - ATM pin = 4829

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