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Maths CBSE Live product
Class 7 (2026-27)
Expression using letter number
Mind the Mistake, Mend the Mistake
3.
Juice bottle cost
Question:
2
m.
A juice bottle costs \(₹\)\(3x + 8\), where \(x = 5\)
Shreya calculates:
\(3x + 8\) \(= 3 + 5 + 8 = 16\)
Mind the mistake:
Identify Shreya's mistake.
Added the term \(3x\) instead of multiplying them.
Multiplied the term \(3x\) instead of adding them.
There is no mistake.
None of the above
Mend the mistake:
Find the correct cost(in \(₹\)).
25
16
23
24
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