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Are the following statements true? (a) ...

Are the following statements true?
(a) 40 persons : 200 persons = Rs 15 : Rs 75
(b) 7.5 litres : 15 litres = 5 kg : 10 kg
(c) 99 kg : 45 kg = Rs 44 : Rs 20
(d) 32 m : 64 m = 6 sec : 12 sec
(e) 45 km : 60 km = 12 hours : 15 hours

Text Solution

Verified by Experts

`(a) 40 persons : 200 persons = ₹ 15 : ₹ 75`
`⇒ 40 / 200 = 1 / 5`
`⇒ 15 / 75 = 1 / 5`
`⇒ 1 / 5 = 1 / 5`
Hence, it is true
`(b) 7.5 litres : 15 litres = 5 kg : 10 kg`
`⇒ 7.5 / 15 = 1 / 2`
...
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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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