alleryA hall has 7 rows of 8 seats. How many seats are there?
A49
B63
C54
D56
Answer & Solution
Correct answer: D. 56
1. Count by sevens: 7, 14, 21, 28, 35, 42, 49, 56.
2. So 7 × 8 = 56.
3. 49 is 7 × 7 and 63 is 7 × 9.
_Source: Wikipedia, Multiplication table (CC BY-SA 4.0, rev 1379867676), multiplication table_
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