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Standard X
Maths
Question
Solve:
{
y
∣
∣
∣
5
y
3
−
7
≤
13
}
,
y
is a prime number
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Solution
Verified by Toppr
{
y
|
5
y
3
−
7
≤
13
}
, y is a prime number
so
5
y
3
−
7
≤
13
⇒
5
y
3
≤
13
+
7
=
20
⇒
5
y
≤
20
×
3
=
60
⇒
y
≤
60
5
=
12
so
y
≤
12
and y is a prime number.
so y can be
2
,
3
,
5
,
7
,
11
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y
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∣
5
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−
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}
,
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