Question

18
10. Let A = {x: x is a positive multiple of 2 less than
20, XE N}, then n(A) is
(1) 7
(2) 8
(3) 6
(4) 9​

Answer 1

Answer:

• Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water. Soil minerals are divided into three size classes — clay, silt, and sand (Figure 1); the percentages of particles in these size classes is called soil texture. ... Relative sizes of sand, silt, clay.

I hope this will be help you.

Answer 2

The answer for your question is (2) 8