Question
A carton has twenty chocolates worth rupees 100. It has Cadbury shots worth rupees 3 each and 5-star worth rupees 11 each. How many 5 star chocolates are there in the carton? [4 MARKS]
Answer:
:
Framing the equation: 1 Mark
Steps: 2 Marks
Result: 1 Mark
Let the no. Of Cadbury shots =y
Then no. of 5-star chocolates =20−y
As given in the question, Cadbury shots worth rupees 3 and 5-star worth rupees 11.
Total cost of Cadbury shots is
=No.ofshots×costofeach=3×y=3y
Total cost of 5 star is
=No.of5star×costofeach=(20−y)×11=220−11y
Total worth of chocolates in carton =100
⇒3y+220−11y=100
⇒220−100=11y−3y
⇒120=8y
⇒y=15
There are 15 Cadbury shots and 5 5-star.
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:
Framing the equation: 1 Mark
Steps: 2 Marks
Result: 1 Mark
Let the no. Of Cadbury shots =y
Then no. of 5-star chocolates =20−y
As given in the question, Cadbury shots worth rupees 3 and 5-star worth rupees 11.
Total cost of Cadbury shots is
=No.ofshots×costofeach=3×y=3y
Total cost of 5 star is
=No.of5star×costofeach=(20−y)×11=220−11y
Total worth of chocolates in carton =100
⇒3y+220−11y=100
⇒220−100=11y−3y
⇒120=8y
⇒y=15
There are 15 Cadbury shots and 5 5-star.
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