Question

400 grams cake cost 80 rupees. How much would a 1.5 kg cake cost.❓❔❓❔
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Answer 1

Answer:

1.5 kg = 1500g.

cost of 400 g = rs. 80

so, cost of 1 g = 80/400 rs.

and cost of 1500 g = 80×1500/400

= 300 rs.

Answer 2

Hey Alex

$\huge \green{ \sf { \underline{\underline{given}}}}$

400 grams cake =₹80

$\huge \green{ \sf { \underline{\underline{to \: find}}}}$

cost of 1.5kg cake

$\huge \purple {\boxed { \underline{solution}}}$

1.5kg=1500gram

$1 \: gram \: cake = \frac{80}{400}$

$1500gram \: cake = \frac{80}{4 \cancel0 \cancel0} \times 15 \cancel0 \cancel0$

$1500g \: cake = \frac{ \cancel{80}}{ \cancel4} \times 15$

$1500g \: cake \: = 20 \times 15$

$1500g \: cake = 300$

$\therefore \: the \: cost \: of \: 1500g(1.5kg) \: cake \: = 300$