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the digits of a 3 digit number are in G.P. and sum of the digits 13. If we subtract 400 from this number the resultant number is in A.P. .Find the number

the digits of a 3 digit number are in G.P. and sum of the digits 13. If we subtract 400 from this number the resultant number is in A.P. .Find the number

Grade:12th Pass

1 Answers

Sam jasdon
32 Points
6 years ago
Let number be xyzSo, y square= xzAnd x+y+z=13After substracting 400 from number, the digits will became x-4, y and z. ( important step)so as they are in ap then... -2Y= z+x-4now you have three variables and three equations, solve it and get answer. My answer is 931..... Enjoy it

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