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Determine if the following are in propor...

Determine if the following are in proportion.(a) 15, 45, 40, 120 (b) 33, 121, 9,96 (c) 24, 28, 36, 48(d) 32, 48, 70, 210 (e) 4, 6, 8, 12 (f) 33, 44, 75, 100

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(a)Ratio of `15 & 45` Ratio of `40 & 120`
∴ `45/15` ​ = `3/1`
​ ∴ `120/40` ...
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NCERT ENGLISH-RATIO AND PROPORTION-EXERCISE 12.1
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  2. Present age of father is 42 years and that of his son is 14. Find the...

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  3. Divide 20 pens between Sheela and Sangeeta in the ratio of 3 : 2.

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  4. Cost of a dozen pens is Rs 180 and cost of 8 ball pens is Rs 56. Find ...

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  5. Consider the statement: Ratio of breadth and length of a hall is 2 : ...

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  6. In a college, out of 4320 students, 2300 are girls. Find the ratio of(...

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  7. Out of 1800 students in a school, 750 opted basketball, 800 opted cri...

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  8. Fill in the following blanks : 15/18 = □/6 = 10/□ = □/30 [Are these eq...

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  9. Distances travelled by Hamid and Akhtar in an hour are 9 km and 12 km....

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  10. Mother wants to divide Rs 36 between her daughters Shreya and Bhoomika...

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  11. There are 20 girls and 15 boys in a class.(a) What is the ratio of nu...

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  12. See the figure and find the ratio of(a) Number of triangles to the num...

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  13. Out of 30 students in a class, 6 like football, 12 like cricket and r...

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  14. Find the ratio of the following: (a) 30 minutes to 1.5 hours          ...

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  15. Find the ratio of the following : (a) 81 to 108                     ...

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  16. There are 102 teachers in a school of 3300 students. Find the ratio of...

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  17. In a year, Seema earns Rs 1,50,000 and saves Rs 50,000. Find the ratio...

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