Question

plz solve this immediate plz experts​

Answer 1

first u do LCM of 6,7,8,12=504

then u convert it

1 hr =60 min

1 min = 60 sec

504/4 =126 min

60×4=120

120/4=30

so the four bell rings during the interval of 6,7,8,12 is 30 min.