Priya, Harini and Kalyani's pets costs Rs. 6000, Rs. 4000 and Rs. 8000 respectively. An addition of Rs. 300 tax added to Harini's pet cost. The difference between the tax costs of Priya and Kalyani is?	Choose the correct answer
A) 180  B) 150  C) 250  D) 500  E) 140
Pet costs of Priya, Harini and Kalyani is 6000 : 4000 : 8000 = 3 : 2 : 4   And also given that, tax of Harini's pet is Rs. 300   =&gt; 2 parts out of 9 parts is Rs. 300   Now, required difference is 4 - 3= 
<gadget id="calculator">4 - 3</gadget>
<output>1</output>
1 part   Required difference= 1/2 (300) = Rs. 150.Answer: 150
<result>B</result>
Priya, Harini and Kalyani's pets costs Rs. 6000, Rs. 4000 and Rs. 8000 respectively. An addition of Rs. 300 tax added to Harini's pet cost. The difference between the tax costs of Priya and Kalyani is?