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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…

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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?
  • A50p coins = 400
    20p coins = 600
    10p coins = 800
  • B50p coins = 300
    20p coins = 700
    10p coins = 200
  • C50p coins = 800
    20p coins = 400
    10p coins = 200
  • D50p coins = 400
    20p coins = 500
    10p coins = 300
Correct answer: A

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CCommunity
50p coins = 400
20p coins = 600
10p coins = 800

50*2k + 20*3k + 10*4k = 40000
200k = 40000 => k = 200
50p coins = 2k = 2*200 = 400
20p coins = 3k = 3*200 = 600
10p coins = 4k = 4*200 = 800