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Lady bird [3.3K]
3 years ago
11

Rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78.

Mathematics
1 answer:
sukhopar [10]3 years ago
3 0
1. For a 14 month period the last term in the sequence is 14 and the series sum is;
1+2+3+4+5+6+7+8+9+10+11+12+13+14
= 105

2. For a 16 month period, the last term in the sequence is 16 and the series sum is
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16
= 136

3. For a 16 month period, the last term of the sequence is 20 and the series sum is;
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20
=210
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