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Q.

Kiran had 85 currency notes in all, some of which were of Rs. 100 denomination and the remaining of Rs. 50 denomination. The total amount of all these currency notes was Rs. 5000. How much did she have in the denomination of Rs. 50?

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a

Rs.2725

b

Rs.3500

c

Rs.1500

d

Rs.2800

answer is B.

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Detailed Solution

Let 100 Rs note be x and 50 Rs note be y
Total number of notes =x+y=85................(1)
Total amount of these currency notes + 5000=100x+50y.............(2)
Multiplying equation 1 with 50
therefore we get 50x+50y=4250.......(3)
Subtracting equation 3 from equation 2, we get
50 x = 750
x = 15
Substituting x=15 in equation 1, we get y = 70
Amount in domination of 50 Rs = 70×50 = 3500
So, the correct answer is “Option 2”.

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