Question

2г.6мес*6 2г.4мес/7 6л.9мес-1г.3мес 1г.5мес+2г.7мес

Answer 1

1) 15лет
2) 4месяца
3) 5лет 6 месяцев
4)4 года

Answer 2

1год≈365 6 мес≈186 суток

1)2г.6мес*6=(730+183)*6=813*6=4878

2)2г.4мес/7=(730+120)/7=850/7≈12

3)6л.9мес-1год.3мес=(2190+270)-(365+90)=2460-455=2405

4)1г.5мес+2г.7мес=(365+180)+(730+210)=545+940=1485

Answer 3

To calculate the arithmetic expression, we need to convert the years and months into a common unit, such as months. Then, we can perform the operations. Let's do that step by step:

1. Convert the years and months into months for each term:

   • 2 years 6 months = 2 * 12 + 6 = 30 months
   • 2 years 4 months = 2 * 12 + 4 = 28 months
   • 6 years 9 months = 6 * 12 + 9 = 81 months
   • 1 year 3 months = 1 * 12 + 3 = 15 months
   • 1 year 5 months = 1 * 12 + 5 = 17 months
   • 2 years 7 months = 2 * 12 + 7 = 31 months

2. Perform the operations:

   a) 30 months * 6 = 180 months b) 28 months / 7 = 4 months c) 81 months - 15 months = 66 months d) 17 months + 31 months = 48 months

Now, the expression becomes:

180 months - 4 months - 66 months + 48 months

3. Combine the terms:

180 - 4 - 66 + 48 = 158 months

Therefore, the result of the arithmetic expression is 158 months.