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An alloy contains only zinc and copper a...

An alloy contains only zinc and copper and they are in the ratio of 7:9. If the weight of the alloy is 8kg, then find the weight of copper in the alloy

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NCERT EXEMPLAR-RATIO AND PROPORTION- Exercise
  1. In Fig. 8.4, the comparative areas of the continents are given: What i...

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  2. A tea merchant blends two varieties of tea costing her Rs 234 and Rs 1...

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  3. An alloy contains only zinc and copper and they are in the ratio of 7:...

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  4. In the following figure, each division represents1 cm. Express numeric...

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  5. Find two numbers whose sum is 100 and whose ratio is 9 :16.

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  6. In Fig. 8.6 (i) and Fig. 8.6 (ii), find the ratio of the area of the s...

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  7. A typist has to type a manuscript of 40 pages. She has typed 30 pages ...

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  8. In a floral design made from tiles each of dimensions 40cm by 60cm (Se...

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  9. In a floral design made from tiles each of dimensions 40cm by 60cm fin...

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  10. In Fig. 8.8, what is the ratio of the areas of shaded portion ...

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  11. In Fig. 8.8, what is the ratio of the areas of shaded portion...

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  12. In Fig. 8.8, what is the ratio of the areas of shaded portion...

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  13. A car can travel 240km in 15 litres of petrol. How much distance will ...

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  14. Bachhu Manjhi earns Rs 24000 in 8 months. At this rate, how much do...

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  15. Bachhu Manjhi earns Rs 24000 in 8 months. At this rate, in how many...

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  16. The yield of wheat from 8 hectares of land is 360 quintals. Find the n...

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  17. The earth rotates 360^(@) about its axis in about 24 hours. By how mu...

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  18. Shivangi is suffering from anaemia as haemoglobin level in her blood i...

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  19. The quarterly school fee in Kendriya Vidyalaya for Class VI is Rs 540....

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  20. In an election, the votes cast for two of the candidates were in the r...

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