Farhan has three pieces of rope with lengths of 140cm, 168cm and 210cm. He wishes to cut all the three pieces of ropes into smal
1 answer:
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So, she wants to be at school at 7.40 (5 mins early)
she needs:
15 mins
5/12 hours (which is
, so 25 mins
so far: 40 mins
then 0.7 and 0.15: we can add those, since they're in decimals: 0.85.
how many minutes is this?
so 39 mins.
together with the previous 40, it's 79 minutes, which is 1 hour and 19 minutes: so she needs to wake up 1 hour and 19 minutes before 7.40 , which is
6.21!
she needs:
15 mins
5/12 hours (which is
so far: 40 mins
then 0.7 and 0.15: we can add those, since they're in decimals: 0.85.
how many minutes is this?
so 39 mins.
together with the previous 40, it's 79 minutes, which is 1 hour and 19 minutes: so she needs to wake up 1 hour and 19 minutes before 7.40 , which is
6.21!