if 4 pens cost rupees 24 what do 15 pens cost?
NOTE: this is the question of ratio and proportion chapter and one thing i want step by step answer
NOTE: this is the question of ratio and proportion chapter and one thing i want step by step answer
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Step-by-step explanation:
4 pens:24 rupees
Here if the number of pens increases then it's cost also increases.
Therefore it is directly proportional.
Now 4/4 pen:24/4 rupees
1 pen:6 rupees
1×15 pens:6×15 rupees
15 pens:90 rupees
Hence the rate of 15 pens is 90 rupees