Answer:

120 kilograms pears were sold in the morning while 240 kilograms pears were sold in the afternoon.

Step-by-step explanation:

• Quantity of pears sold in the morning:  x
• Quantity of pears sold int he afternoon:  2x
• Total quantity sold in kilograms:  360

Equation:

x + 2x = 360

3x = 360

3x/3 = 360/3

x = 120 kilograms

Substitute 120 to x:

Quantity of pears sold in the morning:  x = 120 kilograms

Quantity of pears sold int he afternoon:  2x  ⇒  2(120) = 240 kilograms

Check:

120 + 240 = 360

360 = 360 (True)