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primary 5 | Maths
| Rate & Ratio
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Hi, my child was stuck halfway for this sum. Thank you in advance for your guidance.
Date Posted: 4 years ago
Views: 455
nos.
total: 35u (= 35 units)
r. T: 21u (3/5 of 35u)
remaining: 35-21 = 14u
b. T : y. T = 2 : 5
b. T & y. T = 14u
b. T: 4u
y. T: 10u
10u = 4u + 30
u = 5
nos.
105 r. T ;
20 b. T ;
50 y. T ;
***
unit cost
y. T : 4u
r. T: 3u (= 3/4 of 4u)
b. T: 4u + 8
sale of r. T & y. T
= 4u x 50 + 3u x 105
= 515u
515u = 6180
u = 12
unit cost
y. T : $48
r. T: $36
b. T: $56
sale of b. T = $1120
...
total: 35u (= 35 units)
r. T: 21u (3/5 of 35u)
remaining: 35-21 = 14u
b. T : y. T = 2 : 5
b. T & y. T = 14u
b. T: 4u
y. T: 10u
10u = 4u + 30
u = 5
nos.
105 r. T ;
20 b. T ;
50 y. T ;
***
unit cost
y. T : 4u
r. T: 3u (= 3/4 of 4u)
b. T: 4u + 8
sale of r. T & y. T
= 4u x 50 + 3u x 105
= 515u
515u = 6180
u = 12
unit cost
y. T : $48
r. T: $36
b. T: $56
sale of b. T = $1120
...
Thank you very much!
See 1 Answer
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Hope this helps
Date Posted:
4 years ago
Grateful thanks!
Thank you!
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