Discussion :: Testing allindiaexams
- 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?
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A.
50p coins = 400
20p coins = 600 10p coins = 800 |
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B.
50p coins = 300
20p coins = 700 10p coins = 200 |
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C.
50p coins = 800
20p coins = 400 10p coins = 200 |
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D.
50p coins = 400
20p coins = 500 10p coins = 300 |
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Answer : Option A
Explanation :
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
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