Question

Edward brought 49 9/20 kg kg of guavas on his school trip. He distributes 16 3/5 kg of guavas in the first quarter of the trip, 7 4/8 kg of guavas in the second quarter of the trip, and 17 3/4 kg of guavas in the third quarter. How many kg of guavas are left for the last part of the trip?

Answer 1

Answer:
`7(24)/(40)\ kg`

Explanation:

Given

Edward bought
`49 (9)/(20)\ kg`

he distributes
`16(3)/(5)\ kg` in first trip

In second trip
`7(4)/(8)\ kg`

In third trip, it is
`17(3)/(4)\ kg`

Subtract the sum of first three trips from the total to get the last trip guavas

and convert mixed fraction to fractions

`\Rightarrow 49(9)/(20)-[16(3)/(5)+7(4)/(8)+17(3)/(4)] \\\\\Rightarrow 49+(9)/(20)-16-7-17-[(3)/(5)+(4)/(8)+(3)/(4)]\\\\\Rightarrow 9+(9)/(20)-(24+20+30)/(40)\\\\\Rightarrow 9+(18-74)/(40)\\\\\Rightarrow 9-(56)/(40)\\\\\Rightarrow (360-56)/(40)\\\\\Rightarrow (304)/(40)\ or\ 7(24)/(40)\ kg`

Thus,
`7(24)/(40)\ kg` of guavas are left for the last trip.