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QUESTION
Q
Kiran bought a total of Rs.2.65 worth of postage stamps in four denominations. If he bought an equal number of 5 paisa and 25...
Kiran bought a total of Rs.2.65 worth of postage stamps in four denominations. If he bought an equal number of 5 paisa and 25 paisa stamps and twice as many 10 paisa stamps as 5 paisa stamps, what is the least number of 1 paisa stamps he could have bought ?
A
25
B
20
C
10
D
5
E
15
A
25
B
20
C
10
D
5
E
15
Solution
Let the total number of 5 paisa stamps = NThen the number of 25 paisa stamps = NNumber of 10 paisa stamps = 2NLet, the minimum...
Let the total number of 5 paisa stamps = N
Then the number of 25 paisa stamps = N
Number of 10 paisa stamps = 2N
Let, the minimum number of 1 paisa stamps possible = M
Then,
5N + 25N + 10(2N) + M = 265
50N + M = 265
When 265 is divided by 50 the remainder obtained is 15.
Hence the minimum number of 1 paisa stamps possible = 15
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