Question

A dozen apples weigh 2.4 kg. How many apples will weigh 10.2 kg?
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Answer 1

Answer:

1 dozen=2.4 kg

Weight of one apple=2.4/12=0.2 kg

Let x be the apples that weigh 10.2 kg

x × 0.2= 10.2

x=10.2/0.2

x=51

51 apples will weigh 10.2 kg.

Answer 2

Answer:

51 apples

Step-by-step explanation:

Direct proportion

Apples:                  Weight:

12                               2.4

?                                10.2

Cross-multiply-

12x10.2 = 122.4

122.4/2.4 = 51

Ans = 51