### There are five boxes in cargo hold. The weight of the first box is 200 kg and the weight of the second box is 20% higher than the weight of the third box, whose weight is 25% higher than the first box’s weight. The fourth box at 350 kg is 30% lighter than the fifth box. Find the difference in the average weight of the four heaviest boxes and the four lightest boxes.

**A.** 51.5 kg

**B.** 75 kg

**C.** 37.5 kg

**D.** 112.5 kg

## Show Answer

###
Answer-B

Solution-

__Solution(By Apex Team)__

$\begin{array}{l}\text{The weight of boxes is :}\\
\text{1st box = 200 kg}\\
\text{2nd box = 300 kg}\\
\text{3rd box = 250 kg}\\
\text{4th box = 350 kg}\\
\text{5th box = 500 kg}\end{array}$
Hence, difference between heavier 4 and lighter 4 is 300
Hence, difference in average is 75