Multiple choice

Sam has Rs. 1000 in his pocket in the denominations of Rs. 50 and Rs. 100 only. The ratio of the number of Rs. 50 notes to that of Rs. 100 notes is 25 : 50. How many Rs. 50 notes are there in his pocket?

  1. 10

  2. 20

  3. 4

  4. 8

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let the number of Rs. 50 notes be 25k and Rs. 100 notes be 50k. The total value is 50(25k) + 100(50k) = 1250k + 5000k = 6250k. Setting 6250k = 1000 gives k = 1000/6250 = 0.16. The number of Rs. 50 notes is 25 * 0.16 = 4.

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