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lets see if d=4 , we have 8.145.... which gets rounded to 8.1 ---> ??? Shouldn't it be 8.2? I think this is where we part ... if d=5 we have 8.155, its more than 8.15 so will get rounded to 8.2

hence I think answer is d>=5

I know from a statement in Manhattan book that d>=5 but your expln. is not what I expected. I just want to make sure the concept is right.

lets see if d=4 , we have 8.145.... which gets rounded to 8.1 ---> ??? Shouldn't it be 8.2? I think this is where we part ... if d=5 we have 8.155, its more than 8.15 so will get rounded to 8.2

hence I think answer is d>=5

I know from a statement in Manhattan book that d>=5 but your expln. is not what I expected. I just want to make sure the concept is right.

I think 8.145 will be rounded to 8.1 not 8.2 (because 14 is closer to 10 not 20, so 14 will be rounded to 10 if we are rounding the units digit, that's how I see Rounding....) _________________

Thanks, Sri ------------------------------- keep uppp...ing the tempo...

Press +1 Kudos, if you think my post gave u a tiny tip

Simplifying a number to a certain place value. Drop the extra decimal places, and if the first dropped digit is 5 or greater, round up the last digit that you keep. If the first dropped digit is 4 or smaller, round down (keep the same) the last digit that you keep.

Example: 9.1278 rounded to the nearest tenth = 9.1, since the dropped 2 is less than 5. 9.1278 rounded to the nearest hundredth = 9.13, since the dropped 7 is greater than (or equal to) 5. 9.1278 rounded to the nearest thousandth = 9.128, since the dropped 8 is greater than (or equal to) 5. _________________

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