Lee Soon Yang's answer to katie's Primary 3 Maths Singapore question.
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Let the cost of tie be N.
Since shirt is 5x the cost of a tie, it is 5N.
5N-N=4N
Since the difference between cost of shirt and tie is $36
4N=$36
N=$9
Since he bought a tie and a shirt,
N+5N= 6N
And since 1N = $9
6N = $54
Since shirt is 5x the cost of a tie, it is 5N.
5N-N=4N
Since the difference between cost of shirt and tie is $36
4N=$36
N=$9
Since he bought a tie and a shirt,
N+5N= 6N
And since 1N = $9
6N = $54
Date Posted:
4 years ago
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