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anmol tyagi

· started a discussion

· 1 Months ago

proofread the paper before hosting it (Question: 113169.0 )

The question should have been "A bag contains 1 rupee, 50 paise and 25 paise coins."
"1 rupee" is not printed in your question.
kindly correct that.

Question:

A bag contains 1rupee, 50 paise and 25 paise coins in the ratio 5  : 7 : 9. If the total amount in the bag is Rs. 430, find the number of coins of each kind.

Options:
A) 200, 280, 360
B) 280, 200, 360
C) 360, 280, 200
D) 360, 200, 280
Solution:
Ans: (a) Ratio among the values of the coins = \(\cfrac{5}{1}:\cfrac{7}{2}:\cfrac{9}{4}\) = 20 : 14 : 9.
Thus, the value of one rupee coins = 430 × \(\cfrac{20}{43}\) = \(\unicode{x20B9} \)200.
The value of 50 paise coins = 430 × \(\cfrac{14}{43}\) =\(\unicode{x20B9} \)140.
The value of 25 paise coins = 430 × \(\cfrac{9}{43}\) = \(\unicode{x20B9} \)90
\(\therefore\) The number of cone rupees coins = 200 x 1 = 200
The number of 50 paise coins = 140 x 2 = 280
The number of 25 paise coins = 90 x 4 = 360

Knowledge Expert

· commented

· 1 Months ago

Dear student
We resolved it

Best wishes
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