Question

in 5 minutes, radhika can prepare 12 letters for mailing at the same rate ,how long will it take her to prepare 192 ​

Answer 1

Answer:

80min or 1 hour 20min

Step-by-step explanation:

5 min= 300sec

time for preparing 1 letter= 300/12=25sec

time to prepare 192 letters=25*192=4800sec=80 min or 1hour 20 min