RRB JE 24th May 2019 Shift-3

Instructions

For the following questions answer them individually

Question 81

If $$x-\frac{1}{x}=3$$ then find the value of $$x^{4}+\frac{1}{x^4}$$

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Question 82

Find the ODD one out from the given options.

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Question 83

By how much is four-sevenths of 420 exceeds three-fifths of 200

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Question 84

simplify $$\sqrt{25+10\sqrt{6}}+ \sqrt{25-10\sqrt{6}}$$?

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Question 85

Which of the following component imparts green colour to leaves?

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Question 86

Which material is used as a moderator in a nuclear power plant that slows down the neutrons and makes them fit for causing fission?

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Question 87

Repetition of sound produced by reflection of sound waves is called?

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Question 88

Anitha walks 4 km towards north direction and turns left. After reaching 2 km, she turns right and walks 5 km.
Which direction is she standing from the starting point?

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Question 89

Find the wrong group of alphabets in the following series. BZ, DV, ES, HN, JJ

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Question 90

The amplitude of the sound wave depends on the?

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