A bag contains a certain number of 50 paise coins, 20 paise coins and 10 paise coins inthe ratio 2:3:4. If the total value of all the coins in the bag is Rs.400, find the number of coins of each kind?  Choose the correct answer.
A) 800
B) 277
C) 266
D) 288
E) 1221
50*2k + 20*3k + 10*4k = 40000   200k = 40000 =&gt; k = 200   50p coins = 2k = 2*200= 
<gadget id="calculator">2*200</gadget>
<output>400</output>
400   20p coins= 3k = 3*200= 
<gadget id="calculator">3*200</gadget>
<output>600</output>
600   10p coins= 4k = 4*200= 
<gadget id="calculator">4*200</gadget>
<output>800</output>
800   800nswer: 800
<result>A</result>
A bag contains a certain number of 50 paise coins, 20 paise coins and 10 paise coins inthe ratio 2:3:4. If the total value of all the coins in the bag is Rs.400, find the number of coins of each kind?