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Problems based on Numbers Test 5
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© examsnet.com
Question : 2
Total: 40
A bag contains coins of denomination 50 Paise and 10 paise in the ratio of 1 : 2. If there are Rs 21 in all, how many 10 paise coins are there?
50
30
60
90
Validate
Solution:
Let the number of coins of 50 paise = x
Number of coins of 10 paise = 2x
Total paise = 50 × x = 50x
Total paise of 10 paise coins = 10 × 2x = 20x
According to the statement,
50x + 20x = 2,100 paise
70
x
=
2100
x
=
2100
70
=
30
Number of 10 paise coins
=
2
x
=
2
×
30
=
60
coins.
© examsnet.com
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