Question

Is it possible to create a 7-digit number whose digits are in ascending order (from left to right) and that
gives the same answer when rounded off to the nearest thousand and ten thousand?
gives the reason for your answer.....
​

Answer 1

TO FIND :

7-digit number whose digits are in ascending order (from left to right) and gives the same answer when rounded off to the nearest thousand and ten thousand.

SOLUTION :

◆Since rounding off to both thousand and ten thousand should give same answer , the digit at thousand's place should be 0.

◆Since rounding off to thousands should be to the previous thousand , ( as 0 in thousands place should not change) the value in hundreds place should be less than 5 .

◆Values in 5,6,7 digit place , (from left ) can be any values in ascending order from left. Such as 987, 432,654, etc.

ANSWER :

The 7 digit number which gives the same answer when rounded off to the nearest thousand and ten thousand, given digits in ascending order is 9870400, 6540200,etc.