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If x and y are the tens digit and the units digit, respectively, of th

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Bunuel
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If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  30 Oct 2019, 22:45
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If x and y are the tens digit and the units digit, respectively, of the product 725,278*67,066, what is the value of x + y ?


A) 12
B) 10
C) 8
D) 6
E) 4
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chetan2u
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Re: If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  30 Oct 2019, 23:58
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Bunuel wrote:
If x and y are the tens digit and the units digit, respectively, of the product 725,278*67,066, what is the value of x + y ?


A) 12
B) 10
C) 8
D) 6
E) 4



For units digit, product of just units digit is required so 6*8...so y=8
But since we are looking for both tens and units digit, take last two digits = 78*66= AB48
So x+y=4+8=12

A
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Re: If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  31 Oct 2019, 01:24
multiplication of the no. 725,278*67,066, will give us tens and units as 48
sum ; 12
IMOA

Bunuel wrote:
If x and y are the tens digit and the units digit, respectively, of the product 725,278*67,066, what is the value of x + y ?


A) 12
B) 10
C) 8
D) 6
E) 4
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BelalHossain046
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If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  31 Oct 2019, 01:40
725,278
* 67,066
=======
...........68
+.........8x
========
............48

So, 4+8=12
A is my answer.
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EgmatQuantExpert
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If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  31 Oct 2019, 04:59
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Solution



Given
    • x and y are the tens digit and the units digit, respectively, of the product 725,278*67,066.

To find
    • The value of x + y.

Approach and Working out
    • We need x and y i.e. last two digits of the product.
      o Last two digits we can get if we only multiply the last 2 digits of individual number.
      o So, last two digits of 725,278*67,066 = last two digits of 78 * 66
      o = (____)48
    • So, x + y = 12

Thus, option A is the correct answer.
Correct Answer: Option A
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If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  Updated on: 07 Nov 2020, 01:38
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Bunuel wrote:
If x and y are the tens digit and the units digit, respectively, of the product 725,278*67,066, what is the value of x + y ?


A) 12
B) 10
C) 8
D) 6
E) 4


725,278
..67,066
------------
..........68
..........8x
--------------
..........48
4+8=12
Ans. A

Originally posted by MHIKER on 07 Nov 2020, 00:15.
Last edited by MHIKER on 07 Nov 2020, 01:38, edited 2 times in total.
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Re: If x and y are the tens digit and the units digit, respectively, of th [#permalink] New post  25 Sep 2023, 22:49
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Re: If x and y are the tens digit and the units digit, respectively, of th [#permalink]
25 Sep 2023, 22:49
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