The relative hardness of five minerals N, o, R, S, and T is,to be determined. One mineral is harder than another if drawing an edge of the first mineral across a surface of the second mineral produces a scratch; otherwise, the first mineral is either equally hard or, not as hard as the second. The following results have so far been obtained. N scratches O R scratches S O does not scratch T. If S scratches T. any of the following pairs of minerals could be the same hardness as each other EXCEPT
A N and R
B N and s
C N and T
D o and T
Solution
Correct Answer: Option E
অ্যাপ/ওয়েবসাইটে রুটিনভিত্তিক নিয়মিত লাইভ পরীক্ষা হচ্ছে।