1. Raizal lost 12 kg in a year after joining

Berikut ini adalah pertanyaan dari Kyuuzya pada mata pelajaran Matematika untuk jenjang Sekolah Dasar

1. Raizal lost 12 kg in a year after joining the basketball team and now weight 48 kg. (10 marks)Find the ratio of his current weight to his weight before he joined the basketball team.
Express each ratio in its simplest form!


2. Ronald draws three lines in different colours – red, yellow and green.
The ratio of the length of the red line to the length of the yellow line to the length of the green lines is 1 : 3 : 5. The yellow line is 18 cm long. How long is the green line?
Express each ratio in its simplest form!

3. On Sunday, the ratio of the number of customers at a furniture store in the morning to the number of customers in the afternoon to the number of customers in the evening was 3 : 5 : 9. There were 219 customers in the morning. What was the total number of customers at the furniture store on Sunday ?
Express each ratio in its simplest form!


Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

Jawaban:

1. berat badan sblm nya adalah 12kg + 48kg = 60kg

berat saat ini 48kg

rasio nya 48kg : 60kg = 4 : 5

2. Red : Yellow : Green

1. :. 3. : 5

Yellow 18cm = 3/9 x total pjg garis

total pjg garis = 18 : 3/9 = 18 x 9/3 = 18 x 3 =

54cm

green 5/9 x 54cm = 30cm

3. morning : afternoon : evening

3. : 5 : 9.

morning : 219

219 = 3/17 x total pengunjung

total pengunjung = 219 : 3/17 = 219 x 17/3 =

1.241

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Last Update: Sun, 30 Jan 22