The avg weight of A,B & C is 70 kg. If D joins the group, the avg weight of the group becomes 70 kg.If another man E who weights is 3 kg more than D Replaces A, Then the avgof B,C,D&E becomes 68 kg. What is the weight of A?	Choose the correct choice:  A) 81  B) 65  C) 75  D) 89  E) 90
A + B + C = 3 *70= 
<gadget id="calculator">3 *70</gadget>
<output>210</output>
210   A + B + C + D= 4 * 70= 
<gadget id="calculator">4 * 70</gadget>
<output>280</output>
280 ---- (i)   So, D= 70&amp; E = 70 + 3= 
<gadget id="calculator">70 + 3</gadget>
<output>73</output>
73   B + C + D +E=68 * 4= 
<gadget id="calculator">68 * 4</gadget>
<output>272</output>
272 --- (ii)   From Eq. (i) &amp; (ii)   81-E= 280 –272 = 8   81 = E +8 = 73 + 8= 
<gadget id="calculator">73 + 8</gadget>
<output>81</output>
81   81nswer : 81
<result>A</result>
The avg weight of A,B & C is 70 kg. If D joins the group, the avg weight of the group becomes 70 kg.If another man E who weights is 3 kg more than D Replaces A, Then the avgof B,C,D&E becomes 68 kg. What is the weight of A?