Q&A - P4 Math

[BigDevil]

PapayaDad:

between 1/2 and 5/6


answer 2/5 wrong

Thanks, PapayaDad.

So we can pick any 2 fractions?
What if the fractions must be x/y and (x+2)/(y+2) like in the question?
Then is it always true that x/y < (x+1)/(y+1) < (x+2)/(y+2) :?

[BigDevil]

fohope:

Hi BigDevil,
Thank you for your answer.
I do not understand the question? Could you explain what they means by
sixths in the question?

From thefreedictionary.com....

n.
1. (Mathematics)
a. one of six equal or nearly equal parts of an object, quantity, measurement, etc.
b. (as modifier) a sixth part
2. (Mathematics) the fraction equal to one divided by six (1/6)

So the question is asking how many 1/6's there are in the given fraction.

[fohope]

Hi BigDevil,

Thank you for your clear explanation.

[fohope]

Hi,

Pls help me on this question. Thanks in advance.

A number is 6000 when rounded off to the nearest 10.
What is the largest possible number?

[PapayaDad]

5999

[fohope]

PapayaDad:

5999

The answer is 6004. I dont know is it right?

[MathIzzzFun]

fohope:

PapayaDad:

5999

The answer is 6004. I dont know is it right?

6004 is correct...

rounding to nearest 10
largest possible --> 6000 + 10/2 -1 =6004
smallest possible --> 6000 - 10/2 = 5995

cheers.

[PapayaDad]

i stand corrected. tx.

[PapayaDad]

deleted

[PapayaDad]

BigDevil:

PapayaDad:

between 1/2 and 5/6


answer 2/5 wrong

Thanks, PapayaDad.

So we can pick any 2 fractions?
What if the fractions must be x/y and (x+2)/(y+2) like in the question?
Then is it always true that x/y < (x+1)/(y+1) < (x+2)/(y+2) :?

Not true also. Try x = 3 and y = 2 ; then

3/2 < 4/3 wrong