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A stationery box has 15 pencils and 21 p...

A stationery box has 15 pencils and 21 pens. Express in simplest form:
The ratio of the number of pencils to the number of pens

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The correct Answer is:
`5:7`
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In an Art class, the teacher gives 3 pencils to each student and has 5 pencils left over. a. Find the rule for the number of pencils the teacher had at the beginning of the class. b. If the number of students in the class is 12, find the number of pencils the teacher had at the beginning of the class.

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  7. Find the ratio of : 35 min to 1 (1)/(2) h

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  8. Find the ratio of : 1 kg 200 g to 3 kg 250 g

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  9. Find the ratio of : 25 mm to 15 cm

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  12. Write four equivalent ratios for a. 3:5 b. 5:9 c. 4:7

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  13. Find the value of a given that 3, a, 5, 20 are in proportion.

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  14. Divide 500 in the ratio 2:3:5.

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  15. Divide 714 marbles between Alok and Kabeer in the ratio 3:4.

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  16. A purse contains रु1 and 2 coins in the ratio 7:4. If there are 242 co...

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  17. Arrange the following ratios in descending order. (5:6), (7:8). (9:10)

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  20. Check whether the following numbers are in continued proportion: a. 4....

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