alleryA year has 12 months. How many months are in 15 years?
A170
B180
C185
D150
Answer & Solution
Correct answer: B. 180
1. 15 × 10 = 150.
2. 15 × 2 = 30.
3. 150 + 30 = 180.
_Source: Wikipedia, Multiplication algorithm (CC BY-SA 4.0, rev 1379690463), Long multiplication_
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