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Byju's Answer
Standard IX
Mathematics
Operations on Irrational Number
Multiplicatio...
Question
Multiplication of
6
√
5
and
2
√
5
is
A
300
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B
60
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C
40
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D
200
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Solution
The correct option is
B
60
(
6
√
5
)
(
2
√
5
)
=
6
×
2
×
√
5
×
√
5
=
12
×
√
25
=
12
×
5
=
60
Suggest Corrections
153
Similar questions
Q.
Multiple
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√
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by
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√
5
.
Q.
Write the multiplication form.
(1) 11
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(2) 6
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(3) 10
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(4) 5
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(5) 8
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Q.
Putting the multiples of 4, 6 and 5 in the circles.
• What common multiples of 5 and 6 did you write in the green part?
• What common multiples of 4 and 6 are written in the orange part?
• In which coloured part did you write the common multiples of 4, 6 and 5?
• What is the smallest common multiple of 4, 6 and 5? ________