1
Question
Tina buys 5 TitTat chocolates which cost ₹x each, 3 Crunch chocolates which cost ₹y each and 10 Marymilk chocolates which cost ₹z each. Later she returns 4 Marymilk but buys 3 more Crunch.
What is the expression that represents the final amount (in ₹)?
Tina buys 5 TitTat chocolates which cost ₹x each, 3 Crunch chocolates which cost ₹y each and 10 Marymilk chocolates which cost ₹z each. Later she returns 4 Marymilk but buys 3 more Crunch.
What is the expression that represents the final amount (in ₹)?
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Solution
The correct option is C 5x+6y+6z
At first, Tina bought 5 tittat, 3 crunch and 10 marymilk.
So, the total amount she spent was ₹(5x + 3y + 10z)
After reducing 4 marymilk and adding 3 crunch, the expression is = ₹(3y - 4z)
The final amount is sum of above two expressions and adding like terms, we get
₹[(5x + 3y + 10z)+ (3y - 4z)]
= ₹ (5x + 6y + 6z)
5x+6y+6z
At first, Tina bought 5 tittat, 3 crunch and 10 marymilk.
So, the total amount she spent was ₹(5x + 3y + 10z)
After reducing 4 marymilk and adding 3 crunch, the expression is = ₹(3y - 4z)
The final amount is sum of above two expressions and adding like terms, we get
₹[(5x + 3y + 10z)+ (3y - 4z)]
= ₹ (5x + 6y + 6z)
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