Question

1 dozen needle of same size weight 18 grams then the weight of 20 same size needle is​

Answer 1

Answer:

30

Step-by-step explanation:

1 dozen = 12

so 12 needles = 18 gram

means 1 needle = 18/12

=1.5

so weight of 20 Needles of same size will be of weight = 20 × 1.5

= 30

Answer 2

Answer:

the weight of 20 needles will be 30 grams

Step-by-step explanation:

1 dozen = 12 needles

weight of 12 needles =18 grams

therefore, weight of 1 needle will be,

18/12 = 3/2 = 1.5

therefore, weight of 20 needles will be,

1.5 × 20

= 30