Question

Choose 2 numbers whose sum is 1.9
-0.2
-0.4
-0.5
2 1/10
-0.3
23/10
2 2/5
11/5

Answer 1

To find two numbers from the given options whose sum is 1.9, we can convert everything to a decimally or fractionally compatible format. The decimal equivalent of 1.9 is 1.9, and we can transform the fractions:

- 2 1/10 = 2 + 1/10 = 2.1
- 23/10 = 2.3
- 2 2/5 = 2 + 2/5 = 2.4
- 11/5 = 2.2

Now, listing all the options in decimal form:

- -0.2
- -0.4
- -0.5
- 2.1 (2 1/10)
- -0.3
- 2.3 (23/10)
- 2.4 (2 2/5)
- 2.2 (11/5)

Next, we can check the pairs:

1. **-0.5 + 2.4 = 1.9**
2. **-0.4 + 2.3 = 1.9**
3. **-0.3 + 2.2 = 1.9**
4. **-0.2 + 2.1 = 1.9**

From the calculations, the pairs that give a sum of 1.9 are:

1. -0.5 and 2 2/5 (2.4)
2. -0.4 and 2 1/10 (2.1)
3. -0.3 and 11/5 (2.2)
4. -0.2 and 23/10 (2.3)

Any of these pairs yield a sum of 1.9.