sydelle tay's answer to Rachael's Primary 5 Maths Whole Numbers Singapore question.
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5 chicken is $18
3 pizza is $10
Common number of 3 and 5 are
15 , 30 , 45 , 60 , 75, 90, 85.....
15 chicken and 15 pizza would be
18×3 =54
10×5 =50
The price difference is 4
76÷4 = 19
19th common number of 3 and 5
Since the first common number is 15
We can find the 19th number as it is a multiple of 15
19×15 = 285
So the total number of pizza and chicken wing is 285
3 pizza is $10
Common number of 3 and 5 are
15 , 30 , 45 , 60 , 75, 90, 85.....
15 chicken and 15 pizza would be
18×3 =54
10×5 =50
The price difference is 4
76÷4 = 19
19th common number of 3 and 5
Since the first common number is 15
We can find the 19th number as it is a multiple of 15
19×15 = 285
So the total number of pizza and chicken wing is 285
Date Posted:
3 years ago
Thank you!
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