Mathematics
Grade-4-
Easy
Question
9 × 
= 27
- 1
- 2
- 3
- 4
Hint:
Recall table of 9.
The correct answer is: 3
According to table of 9.
9 x 1 = 9
9 x 2 = 18
9 x 3 = 27
Therefore, 9 × 3 = 27
The correct option is (c) 3.
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From the following which number is not a prime number.
Check every option for prime number.
We can see that only option (a) has more than two factors.
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The correct option is (a) 9.
From the following which number is not a prime number.
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We can see that only option (a) has more than two factors.
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The L.C.M. of 50 and 60 is___________.
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60 = 2 x 2 x 3 x 5
Step 2:
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The correct option is (b) 300.
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Step 1: Find the prime factors of 50 and 60.
50 = 2 x 5 x 5
60 = 2 x 2 x 3 x 5
Step 2:
LCM = 2 x 5 x 5 x 2 x 3
LCM = 300
The correct option is (b) 300.
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