Which of the following cannot be the price (in Lh) of the product that E purchased?
Explanation:
E gave Lh. 660 and was returned 2 notes. The notes returned should not be of same denomination as that given by the E.
Option (a): If the price is 651, E will get (660 – 651 =) Lh. 9 back. He can get a note of 4 and 5 each. ∴ Price of Lh. 651 is possible.
Option (b): If the price is 648, E will get (660 – 648 =) Lh. 12 back. He can get a note of 5 and 7 each. ∴ Price of Lh. 648 is possible.
Option (a): If the price is 653, E will get (660 – 653 =) Lh. 7 back. He can get a note of 2 and 5 each. ∴ Price of Lh. 653 is possible.
Option (a): If the price is 644, E will get (660 – 644 =) Lh. 16 back. He will get a note of 5 and 11 each (which is not possible). ∴ Price of Lh. 644 is not possible.
Hence, option (d).
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