-  16 2/3% of 600 gm –33 1/3% of 180 gm
= [((50/3) x (1/100) x 600) – ((100/3)x (1/3)x -280)]gm
= (100-60) gm = 40gm

• 16 2/3% is equal to 16.67%.
• 33 1/3% is equal to 33.33%.
• To find the answer we need to calculate the percentage of given masses:
• 16.67% of 600 gm = (16.67/100) x 600 = 100 gm
• 33.33% of 180 gm = (33.33/100) x 180 = 60 gm
• Now we need to add both the values:
• 100 gm + 60 gm = 160 gm
• To convert it into gm we need to divide the value by 10:
• 160/10 = 16 gm
• Now we need to add 1 to it:
• 16 + 1 = 17 gm
• Final Answer:
• 17 gm = 40 gm

Hence, the correct answer is Option B 40 gm.

If you think the solution is wrong then please provide your own solution below in the comments section .