Question

A man forgot his ATM pin of 4 digit but he remember 4 things :-
a) first number is three times the third number.
b) sum of first and second number is 5.
c) fourth number is product of second and third.
d) sum of all 4 digits is 20.
Help Him To Find His ATM Pin Number

GIVE CORRECT ANSWER AND STEP BY STEP SOLUTION ​

Answer 1

Explanation:

a) first number is three times the third number.

third no = x

first no. = 3x

b) sum of first and second number is 5.

c) fourth number is product of second and third.

y * x = w ( as fourth no.)

⇒ x + 3x + xy = 5

⇒ 4x + xy = 5

⇒x(4 + y) = 5

⇒divide both side by 4 + y ; y ≠ -4

⇒$\frac{x(4+y)}{4+y} = \frac{5}{4+y} ;$ y ≠ -4

$x = \frac{5}{4+y}$

First no = $3*\frac{5}{4+y}$

15/4+y

third no. = 5/4+y

second no. = y

fourth no. = 5/4+y × y

5y/4+y

{(15/4+y) + y + (5/4+y) + ( 5y/4+y)} = 20

Multiply both side by 4+y

$\frac{15}{4+y} (4+y) + y(4+y) +\frac{5}{4+y} (4+y) \frac{5y}{4+y} (4+y)$

$15 + y(4+y) + 5 + 5y = 20(4+y)$

y = 15 , y = -4

since the equation is undefined for : -4

y = 15

Answer 2

Answer:

apko Mil to Raha hai Answer

Step-by-step explanation:

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