Question

You have 9 blank cards on each card you can write 1,3 or 5. How can you obtain total sum of 25?

Answer 1

Write 1 on three cards, 3 on four cards and 5 on two cards then you will obtain total sum of 25.

Step-by-step explanation:

You have 9 blank cards.

You can write 1, 3 or 5.

If you write 1 on three cards, 3 on four cards and 5 on two cards.

Total number of cards will be 3 + 4 + 2 = 9.

Sum of the numbers on card = 1 x 3 + 3 x 4 + 5 x 2 = 3 + 12 + 10 = 25.

Hence, in this way you can obtain total sum of 25.