Question

six bells commence tolling together and toll at intervals of 2 4 6 8 10 and 12 seconds respectively . in 30 minutes, how many times will they toll together​

Answer 1

Answer ☟

After every 120 minutes =2 hours,bells will toll together.

so,required number of times =

$\frac{30}{2} + 1 \\ \\ \frac{30 + 2}{2} \\ \\ \frac{32}{2} \\ \\ 16$

______________x______________