In how many ways can X give Rs 500 to Y using only Rs 100 and Rs 20 notes, with the condition that she has only 16 notes of Rs 20, and being asked to use the notes of both the denominations?
Added by Jamie V.
Step 1
Step 2: We know that the total amount given is Rs 500. So, we can write the equation as: 100a + 20b = 500 Step 3: We also know that X has only 16 notes of Rs 20. So, b must be less than or equal to 16. Step 4: Since X is asked to use both denominations, a and Show more…
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