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In 1975, the consumption of water for hu...

In 1975, the consumption of water for human use was about 3850 cu.km/year. It increased to about 6000 cu.km/year in the year 2000. Find the per cent increase in the consumption of water from 1975 to 2000. Also, find the annual per cent increase in consumption (assuming water consumption increases uniformly).

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NCERT EXEMPLAR-COMPARING QUANTITIES-Exercise
  1. Jyotsana bought a product for Rs 3,155 including 4.5% sales tax. Find ...

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  2. An average urban Indian uses about 150 litres of water every day. ...

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  3. In 1975, the consumption of water for human use was about 3850 cu.km/y...

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  4. Harshna gave her car for service at service station on 27-05-2009 and ...

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  5. Given the principal = Rs 40,000, simple rate of interest = 8% p.a. Fin...

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  6. In Delhi University, in the year 2009 – 10, 49,000 seats were availabl...

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  7. Prachi bought medicines from a medical store as prescribed by her doct...

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  8. Kritika ordered one pizza and one garlic bread from a pizza store and ...

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  9. Arunima bought household items whose marked price and discount % is as...

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  10. Devangi’s phone subscription charges for the period 17-02-09 to 16-03-...

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  11. Shyam deposited in a bank Rs 7500 for 6 months at the rate of 8% in...

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  12. Babita bought 160 kg of mangoes at Rs 48 per kg. She sold 70% of the m...

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  13. A shopkeeper was selling all his items at 25% discount. During the off...

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  14. Ayesha announced a festival discount of 25% on all the items in her mo...

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  15. Find the difference between Compound Interest and Simple Interest on R...

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  16. A new computer costs Rs 1,00,000. The depreciation of computers is ver...

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  17. The population of a town was decreasing every year due to migration, p...

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  18. Lemons were bought at Rs 48 per dozen and sold at the rate of Rs 40 pe...

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  19. If the price of petrol, diesel and LPG is slashed as follows: Com...

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  20. What is the percentage increase or decrease in the number of seats won...

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