There are five newly appointed teachers in a college. The weight of first teacher is 200 kg and the weight of the 2nd teacher is 20% higher than the weight of the third teacher, whose weight is 25% higher than the first teacher's weight. The fourth teacher at 350 kgs is 30% lighter than the fifth teacher. Find the average weight of all the five teachers.  Choose the correct choice from the following choices.
A) 310  B) 320  C) 240  D) 260  E) 270
Explanation :   Weight of first teacher = 200 kg   Weight of 3rd teacher = 250kg   =&gt; Weight of 2nd teacher = 300 kg   Weight of 4th teacher = 350 kg   =&gt; Weight of 5th teacher = 350/0.7= 
<gadget id="calculator">350/0.7</gadget>
<output>500</output>
500 kg   Average weight= 1600/5= 
<gadget id="calculator">1600/5</gadget>
<output>320</output>
320 kg.   Answer : 320
<result>B</result>
There are five newly appointed teachers in a college. The weight of first teacher is 200 kg and the weight of the 2nd teacher is 20% higher than the weight of the third teacher, whose weight is 25% higher than the first teacher's weight. The fourth teacher at 350 kgs is 30% lighter than the fifth teacher. Find the average weight of all the five teachers.