Is `3! + 4! = 7!`?

Options

A. yes
B. No
C. may or may not
D. None of these

Answer

B

Explanation

3!=1×2×3 = 6 and 4!=1×2×3×4 = 24

⇒3!+4!
=6+24=30,

7!=1×2×3×4×5×6×7=5040

∴ 4!+3! `\ne`7!