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Priyanshu has currency notes of Rs. 10 and Rs. 20. She uses 2 notes of Rs. 20 and 1 note of Rs. 10 to form Rs. 50. How many other combinations are possible to form the same amount using both the currency notes? You can ignore the spatial arrangements of the currency notes.

Priyanshu has currency notes of Rs. 10 and Rs. 20. She uses 2 notes of Rs. 20 and 1 note of Rs. 10 to form Rs. 50. How many other combinations are possible to form the same amount using both the currency notes? You can ignore the spatial arrangements of the currency notes. Correct Answer 1

Calculation:   

Total amount = (20 × 2) + (10 × 1) = Rs. 50

⇒ Different arrangement possibility:

(1) (20 × 1) + (10 × 3) = 50    

(2) (20 × 2) + (10 × 1) = 50

2 notes of Rs. 20 and 1 note of Rs. 10 is already used

∴ To make Rs. 50 one type of arrangement can be done.

The correct option is 2 i.e. 1    

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