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27 Dec 2019, 01:46
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
64% (02:13) correct
36%
(02:14)
wrong
based on 209
sessions
History
Date
Time
Result
Not Attempted Yet
The number of 1 Re, 50 paise and 25 paise coins in a bag is in the ratio 3 : 4 : 5. If the bag has Rs. 300, find the number of 50 paise coins.
A. 60
B. 96
C. 144
D. 192
E. 240
A. 60
B. 96
C. 144
D. 192
E. 240
30 Dec 2019, 13:21
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Solution
Given
In this question, we are given that
- • The number of 1 Re, 50 paise and 25 paise coins in a bag is in the ratio 3: 4: 5
• The bag has Rs. 300
• 1 Re = 100 paise
To find
We need to determine
- • The number of 50 paise coins in the bag
Approach and Working out
Let us assume the number of 1 Re, 50 paise and 25 paise coins are 3n, 4n, and 5n respectively
As the total amount present in the bag is Rs. 300, we can write
- • (100 x 3n) + (50 x 4n) + (25 x 5n) = 300 x 100
Or, 300n + 200n + 125n = 30000
Or, 625n = 30000
Or, n = 30000/625 = 48
Therefore, the number of 50 paise coins = 4n = 4 x 48 = 192
Thus, option D is the correct answer.
Correct Answer: Option D
02 Jan 2020, 13:57
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Re 1 = 100 paise. 50 paise and 25 paise. Ratio is 3:4:5 so amount of 100 paise = 3*100 = 300 paise. amount of 50 paise = 200 paise. amount of 25 paise = 125 paise. Total amount = 625 paise. Some multiplying factor (x)*625 = 30000 paise
x = 48. Then number of 50 paise coins = 48*4 = 192 Ans D.
x = 48. Then number of 50 paise coins = 48*4 = 192 Ans D.
