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Lesson 7: Word problems related to quadratic equation
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Word problems related to quadratic equation
Lesson 7 · Word problems related to quadratic equation
Word problems related to quadratic equation
Mathematics
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8 min
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Question 1 of 14
1
Sumitra is 12 and her sister is 18. Which equation says that after \( x \) years the product of their ages is 280?
\( 12x \times 18x = 280 \)
\( (12 + x) + (18 + x) = 280 \)
\( (12 + x)(18 + x) = 280 \)
\( (12 - x)(18 - x) = 280 \)