Riya bought 21 notebooks at ₹10 each and paid ₹210. After taking 5 notebooks for her friend, how many notebooks did she...
Type: MCQ • Marks: 1
Riya bought 21 notebooks at ₹10 each and paid ₹210. After taking 5 notebooks for her friend, how many notebooks did she keep? Frame the equation using n for the number she kept.
Options
A. 10(n + 5) = 210
B. n ÷ 10 = 210
C. 10n − 5 = 210
D. 10n + 5 = 210
Explanation
She kept n and gave away 5, so total notebooks = n + 5. Cost: 10(n + 5) = 210.
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Class 7thGanita Prakash 2
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