fruit shop brings in a batch of fruits, among which the weight of apples is 50 kg, the mass of pears is 6/5 that of apples, and the weight of pineapples is 1/4 that of pears. How many kilograms of pineapples does the fruit store ship in?
水果店运进一批水果，其中苹果重50千克，梨的质量是苹果的(6/5)，菠萝比梨重(1/4)．水果店运进多少千克菠萝？
<gadget id="calculator">6 / 5</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">50 * (6/5) * (5/4)</gadget>
<output>75</output>

<result>75</result>