Rakhelp's answer to Moly's Primary 6 Maths Singapore question.
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Q6
400x0.6=240 purple
so, red+pink=160
red=4×pink
so,
(4×pink)+pink=160
pink=32
buy x no. of pink,
now total pink=(32+x)
total red+pink=160+x
(32+x)=0.36×(160+x)
solve, x=40
400x0.6=240 purple
so, red+pink=160
red=4×pink
so,
(4×pink)+pink=160
pink=32
buy x no. of pink,
now total pink=(32+x)
total red+pink=160+x
(32+x)=0.36×(160+x)
solve, x=40
Date Posted:
4 years ago
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