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Who introduced the Ryotwari system?

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Important Questions on Ratio and Proportion

EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who among the following invented Adding Machine?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Which device is used to test whether an object is carrying charge or not? 
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General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who among the following invented Electric Motor? 
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who invented first working laser?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who among the following scientist discovered the Law of Floatation?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who invented the process of photography on metal?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who discovered the double-helical structure of DNA?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
The innovative concept of using sunshine to keep houses warm in freezing winters is called ______
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Where was paper invented?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Punched card is also called as _____.
MEDIUM
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
In April 2019, scientists in _____ produced the world's first 3D printed heart using human tissue
HARD
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who presented that all the plants and animals are composed of cells and that the cell is the basic unit of life?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who among the following scientists invented the Cotton Gin?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who discovered the nucleus for the first time in cell?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Christiaan Barnard is famous for _____.
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Who discovered electromagnetism?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Whose invention led to the development of polio vaccine?
EASY
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages

In 1831, electricity became viable for use in technology when ______ created the electric dynamo.

HARD
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages
Scientists have created world's shortest laser pulse _____ with a duration of just 43 attoseconds.
MEDIUM
General Test>Quantitative Reasoning>Ratio and Proportion>Problems Based on Ages

The test for diagnosing HIV is:  

1. Pap Smear
2. ELISA
3. DND
4. Mantoux