Question

can you.. solve it..​

Answer 1

Solution :-

Since it is impossible for 3 odd numbers add up to an even number. We have to use another trick rather than trying pairs of given numbers.

We may create odd numbers as even :-

(11–1)+(13–3)+(15–5)=30.

Another approach, use factorials :-

3! + 9 + 15 = 30

n! is a mathematical notation to represent n × (n-1) × (n-2) × (n-3) . . . 3 × 2 × 1.

These two possible cases, I do know!