Question

Pick up any three numbers from these(3. 5. 7. 9. 11. 13. 15. 17. 19) whose sum becomes 30 when added .it can be in any sequence or order but the sum should be 30

Answer 1

Do you have to use them all? If so, here’s one way, using addition and subtraction only:

-1+3–5+7+9–11+13+15=30

Answer 2

${\huge {\mathfrak {\red {Answer :-}}}}$

We have,

25 - 25 = 0 = 20 - 20

Or, 25 - 25 = 20 - 20

Or, 5 * 5 - 5 * 5 = 4 * 5 - 4 * 5

Or, 5(5 - 5) = 4(5 - 5)

Now, cancelling (5 - 5) from both sides,

We get, 5 = 4.

Therefore,

4 + 15 + 11 = 30

Since, 4 = 5, we may write,

Or, 5 + 15 + 11 = 30.

➡️ $<b>Hence, 5 + 15 + 11 = 30 </b>$

That's it..