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Byju's Answer
Standard XII
Mathematics
Summation by Sigma Method
In the follow...
Question
In the following multiplication problem, find the numerical values of S, W in that order
S 3 4 5 W
×
2
------------------------
4 6 9 1 2
A
2
,
6
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B
3
,
1
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C
2
,
1
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D
2
,
2
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Solution
The correct option is
A
2
,
6
Given, S345W
×
2
=
46912
W
can take the value
1
or
6
If
W
=
1
then the second-last digit will be zero which is false
So,
W
=
6
Then we get
S
=
2
Thus, the values of S, W are
2
,
6
.
Hence, option (A) is the correct answer.
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Similar questions
Q.
If A = {x
∈
N | 1 < x < 4},
B = {x
∈
W | 0
≤
x < 2}
and C = {x
∈
N | x < 3}.
Find (A
×
B)
∪
(A
×
C)