RRB JE 28th June 2019 Shift-3

Instructions

For the following questions answer them individually

Question 71

Simplify: $$(0.3 \times 0.3 + 0.01) \times (0.1 \times 0.1 + 0.09)$$

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Question 72

Froth floatation process is based on-

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Question 73

The simplest way to maintain a potential difference between the two ends of a conductor, so as to get a continuous flow of current is to connect the conductor between the terminals of a ________.

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Question 74

Which of the following is NOT a biodegradable waste?

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Question 75

If the selling price is Rs.1680 there is a loss of 16%, what should be the marked price on this product, if after allowing discount of 8% there is a profit of 15%?

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Question 76

Selvam is on $$9^{th}$$ position from upwards and on $$38^{th}$$ position from downwards in a class. How many students are in class?

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Question 77

The mean of x , x + 3, x + 5, x + 7, x + 10 is 9. What is the mean ofthe first 3 observations?

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Question 78

In 16 minutes, the minute hand gains ........... over the hour hand.

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Question 79

Name the physical quantity whose unit is Ohm(Ω).

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Question 80

Complete the series.
18, 21, 24, 27, (...)

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