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Question

As a Christmas offer, there is a huge discount on all dishes whose costs are multiples of 5. Which of the following cost of dishes has a discount?

A
Cost = ₹25
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B
Cost = ₹34
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C
Cost = ₹44
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D
Cost = ₹24
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Solution

The correct option is A Cost = ₹25
The multiple of 5 are:
1×5=5
2×5=10
3×5=15
4×5=20
5×5=25
6×5=30
.
.
.

From the above, we can observe that unit digit of multiples of '5' are either 0 or 5. Hence, 25 is a multiple of 5.

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