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Find the difference between the 19 and 15 multiple of the following numbers (a) 41 (b) 20 (c) 12
Solution:
A) 19 multiple of $41 = 19 \times 41$; 15 multiple of $41 = 15 \times41$
Difference between 19 and 15 multiple of $41 = 19 \times 41-15 \times 41$
= $41 (19 - 15)$
= $41 \times 4$
= 164 Answer
B) 19 multiple of $20 = 19 \times 20$; 15 multiple of $20 = 15 \times 20$
Difference between 19 and 15 multiple of $20 = 19 \times 20 -15 \times 20$
= $20 (19 - 15)$
= $20 \times 4$
= 80 Answer
C) 19 multiple of $12 = 19 \times 12$; 15 multiple of 12 = $15 \times 12$
Difference between 19 and 15 multiple of $12 = 19 \times 12 - 15 \times 12$
= $12 (19 - 15)$
= $12\times 4$
= 48 Answer
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