Question

can you find the 4 digit PIN number'pqrs'of an ATM card such that p²×q¹×r⁴×s³=315000?​

Answer 1

Answer:

Let q be 7.

p.p x r.r.r.r.r x s.s.s = 45000

Let r be 5

p.p x 625 x s.s.s = 45000

p.p x s.s.s = 45000/625 = 72

Let s be 2

p.p =72/8 =9

p = 3

The ATM PIN is 3752.

Sorry, I could not find ‘raised to’ signs in my phone.

Answer 2

Answer:

A forgotten bank ATM pin which is a four digit number, here are some. (1) the 1st digit is half of the 2nd, (2) the sum of the 2nd and the 3rd is 10, (3) the 4th is equal to the 2nd and 1st, (4) the sum of all the digits is 23. What is the ATM pin?