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Q.

If  27×3=243 and 5×4=80. Then the value of 3×7 is:


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a

84

b

147

c

63

d

23  

answer is B.

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Detailed Solution

Given that, 27×3=243 and 5×4=80.
We have to find the value of 3×7.
We can see that,
27×3=81 81×3=243 Similarly,
5×4=20 20×4=80 Hence,
3×7=3×7×7=147 Hence, the required value is 147.
Therefore, the correct option is 2.
 
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