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# Maths questions need some help!!

since im useless at maths im in need of your help. what is 3.643kg to the nearest 10 grams and what is 2 hours 28 minutes to the nearest 5 minutes??

Banned

3.6kg id say and 150 mins?

3.64 kg and 2hr 30 mins so 150 mins

Above first answer is to the nearest 100g i believe

3.64kg ^^^^^^

Original Poster

but isnt 3.6kg 3600g?

3.64 kg and 2 hours 30 mins

edited for being wrong

but isnt 3.6kg 3600g?

Yes, so 3643 to the nearest 10 is 3640 or 3.64kg. NOT ^^^^^

asayer;7656271

It's amazing the level of teaching in this country!

Original Poster

and isnt 2 hours 28 mins to the nearest 5 mins 2 hr 25 mins? oh im so confused!i
2 hr 30 is to the nearest 10 mins isnt it?:thinking:

Foxy102;7656287

It's amazing the level of teaching in this country!

I should know :lol:

and isnt 2 hours 28 mins to the nearest 5 mins 2 hr 25 mins? oh im so … and isnt 2 hours 28 mins to the nearest 5 mins 2 hr 25 mins? oh im so confused!i2 hr 30 is to the nearest 10 mins isnt it?:thinking:

no

halfway between 25 past and 30 minutes past is 27.5 (27 minutes 30 seconds)

28 minutes is greater than 27.5 so therefore it gets pushed up to 30 minutes

which means 2 hours 30 mins

simples.

asayer;7656305

I should know :lol:

ohh err:oops:

and isnt 2 hours 28 mins to the nearest 5 mins 2 hr 25 mins? oh im so … and isnt 2 hours 28 mins to the nearest 5 mins 2 hr 25 mins? oh im so confused!i2 hr 30 is to the nearest 10 mins isnt it?:thinking:

Just because it says to the nearest 5 mins it desn't have to end in 5, just a multiple of it, i.e 30

Foxy102;7656323

ohh err:oops:

:whistling: glad we got the the right answer in the end :thumbsup:

you all clear now OP?!

numptyj;7656320

nohalfway between 25 past and 30 minutes past is 27.5 (27 minutes 30 … nohalfway between 25 past and 30 minutes past is 27.5 (27 minutes 30 seconds)28 minutes is greater than 27.5 so therefore it gets pushed up to 30 minuteswhich means 2 hours 30 minssimples.

sancho1983;7656338

Just because it says to the nearest 5 mins it desn't have to end in 5, … Just because it says to the nearest 5 mins it desn't have to end in 5, just a multiple of it, i.e 30

and this ^

btw OP

did you not go to school? lol

Original Poster

numptyj;7656355

and this ^btw OPdid you not go to school? lol

I did go to school indeed a very long time ago:)lol. My child was asking me this question and it made me scratch my head thinking, now i think about it the answer was very simple i could have figured it out myself if i took the time:p:w00t:

3640 150