iwannasleep
iwannasleep
07.10.2019 • 
Mathematics

 12 pont's
ronny read for 2.75 hours yesterday. his older brother read for 1.18 hours and his younger brother read for 0.43 hours.

how long did the three brothers read yesterday altogether?

a. 1.14 hours
b. 3.12 hours
c. 4.12 hours
d.4.36 hours

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