Math, asked by kookie53, 1 year ago

5th que....explain....fast.....
i will mark u as a brainlist......

Attachments:

Anonymous: Is the answer 7/4?

Answers

Answered by atharvvtiwari
3

Answer:

7 / 4

Step-by-step explanation:

Let the number be x.

As given,

4 { x - (1 / 2) } = 5

( 2x - 1 ) / 2 = 5 / 4

2x - 1 = ( 5 × 2 ) / 4

2x - 1 = 5 / 2

2x = 5/2 + 1

2x = ( 5 + 2 ) / 2

2x = 7 / 2

x = 7 / 4


atharvvtiwari: But that's not possible mate, is it?? Substitute it in the given condition and check for yourself.. 7 / 4 ought to be correct..
pankajbibiyan: u r right
kookie53: no the ans. is 14 and 20 bcoz we have to dive 34 and 20+14=34
kookie53: divide 34
atharvvtiwari: Hey wait.. I think there's a misunderstanding.. You're sure you're talking about the question in the attachment??
kookie53: read the que 5 again
kookie53: oh i posted the wrong que
atharvvtiwari: It says when 1/2 is subtracted from a number and the difference multiplied by 4, answer obtained is 5
atharvvtiwari: That's what I did in the working.. And 7 / 4 fits in with this condition
atharvvtiwari: Oh.. No problem mate.. Happens ;-)
Answered by superjunior
8
hi,
here is the solution for your q..
________________________
let the number be x
-------------------------------
our equation= x - 1/2 ×4 = 5
________________________
solution:--
==>x-1/2×4 =5
==> x-1/2 = 5/4
==> x/1-1/2 = 5/4
==>2x-1/2=5/4
==>(2x-1)4 = 5×2
==> 8x -4 = 10
==> 8x = 10+4
==> x = 14/8
==> x = 7/4
__________


11anonymous11: i said !!
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