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Byju's Answer
Standard IV
Mathematics
Multiplication Trick for a Table
What will com...
Question
What will come in place of question mark?
15 × 6 = ? × 6 + 5 × 6
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Solution
15 can be written as
15 = 1+14
15= 2+13
15 = 3+12
15= 4 + 11
15= 5 + 10 and so on
Here we already have 5 , hence to get 15 we must have 10
15 × 6 = (10 + 5) × 6
= 10× 6 + 5 × 6
Thus, 10 will come in place of question mark.
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