Copper and zinc are the only elements in alloys A and B. The ratio of copper and zinc in the alloys A and B is 2:3 and 3:1 respectively. An alloy C is made by mixing alloys A and B. Which of the following can be a possible ratio of zinc and copper in the alloy C?

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RBI Grade B Officers Phase I Practice Papers>Chapter 2 - Practice Paper>Set 4>Q 132

Sonal and Deepali started swimming towards each other simultaneously from points A and B respectively situated at two ends of a 96 km long stretch of a river. Destinations of Deepali and Sonal are points A and B respectively. Both of them can swim at 12 kmph in still water. When they started, it was high tide and Sonal swam against the stream. As soon as they met, the tide changed to 'low tide' and then Deepali faced the resistance of the stream. Deepali and Sonal took 7 hr 12 min and 8 hr

34 \frac{2}{7}

min to reach their destinations respectively. [Speed of the stream during high and low tide need not necessarily be the same] If they continue to swim back to their respective starting points after reaching their destinations, then where will they meet during the return journey?[Assume tide changes only once immediately after their first meeting]

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RBI Grade B Officers Phase I Practice Papers>Chapter 2 - Practice Paper>Set 4>Q 133

Mohan borrowed Rs. 22,500 from two friends Kirti and Lalit. He repaid the amount bororwed from Kirti with an interest at the rate of 11 % p.a. and repaid the amount bororwed from Lalit with an interest at the rate of 12% p.a. The total interest paid for two years was Rs. 4,900. The amount he borrowed from Lalit was:

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RBI Grade B Officers Phase I Practice Papers>Chapter 2 - Practice Paper>Set 4>Q 134

The average age of the eleven players of a team, standing in a row, is 37.5 years. If the average age of the first six players from the left is 42.8 years while that of first six players from the right is 34.7 years, then find the age of the sixth player from the left.

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RBI Grade B Officers Phase I Practice Papers>Chapter 2 - Practice Paper>Set 4>Q 135

P is any point in a plane on which a rectangle ABCD having dimensions 12 cm x 8 cm is drawn such that both PAS and PBC are triangles. If PA:PB =3:1, then which of the following can never be the ratio of the length of line segments PC and PB?

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RBI Grade B Officers Phase I Practice Papers>Chapter 2 - Practice Paper>Set 5>Q 1

Agartala lies on the bank of river _____.

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RBI Grade B Officers Phase I Practice Papers>Chapter 2 - Practice Paper>Set 5>Q 2

Khangchendzonga National Park is located in _____.

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