Logic

[charred fossil]

Someone had sent me this challenge, but I never managed to find an answer...

[plush bane]

855

[charred fossil]

.solved

[quaint oar]

Solved

Post marked as solved by @spring wind.

Use .unsolved if this was a mistake.

[tawdry mason]

clock = 7 + 7 + 7= 21 and calculator = 10+10+10=30 and light bulb = 15+15-15=15 anyway, we were asked = 7+ 10 × (15+15+15) 1. 10 × 45= 450 2. 7+450= 457 well,the answer is 457 because = There is an operation priority in mathematics. good days

[static jackal]

if you check the time of the clock, you can see that it's:
9:00 + 9:00 + 3:00