MCQ
By what rational number should $\frac{-3}{5}$ be multiplied to obtain $21?$
- A$\frac{\text{507}}{4}$
- B$35$
- ✓$-35$
- D$507$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
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Class Interval
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Frequency
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$0 - 10$
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$1$
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$10 - 20$
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$6$
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$20 - 30$
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$20$
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$30 - 40$
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$12$
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$40 - 50$
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$6$
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Total
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$45$
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