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Q:

Which is a better offer out of (i) a cash payment now of Rs.8100 or (ii) a credit of Rs.8250 after 6 months(6.5% S.I)

A) (i)	B) (ii)
C) both (i) and (ii)	D) none

Answer & Explanation Answer: A) (i)

Explanation:

PW = $\frac{100 \times A m o u n t}{100 + (R \times T)}$

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Filed Under: True Discount
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

If n is even, which of the following cannot be odd?

A) n+3	B) 2n
C) n+4	D) 3n

Answer & Explanation Answer: B) 2n

Explanation:

In case B, odd times even will give even

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Filed Under: Numbers
Exam Prep: GRE

Q:

Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of P ?

A) 11/P + 6	B) P/11 +6
C) 17 - P/6	D) 17/P

Answer & Explanation Answer: A) 11/P + 6

Explanation:

Let Ben’s age now be B

Anita’s age now is A.

(A - 6) = P(B - 6)

But A is 17 and therefore 11 = P(B - 6)

11/P = B-6

(11/P) + 6 = B

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Filed Under: Problems on Ages
Exam Prep: GRE

Q:

-20 , -16 , -12 , -8 ....

In the sequence above, each term after the first is 4 greater than the preceding term. Which of the following could not be a term in the sequence?

A) 220	B) 440
C) 668	D) 762

Answer & Explanation Answer: D) 762

Explanation:

All terms in the sequence will be multiples of 4.

762 and 902 are not multiples of 4

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Filed Under: Sequential Output Tracing
Exam Prep: GRE

Q:

A man in a train notices that he can count 41 telephone posts in one minute. If they are known to be 50 metres apart, then at what speed is the train travelling?

A) 60 km/hr	B) 100 km/hr
C) 110 km/hr	D) 120 km/hr

Answer & Explanation Answer: D) 120 km/hr

Explanation:

Number of gaps between 41 poles = 40
So total distance between 41 poles = 40*50
= 2000 meter = 2 km
In 1 minute train is moving 2 km/minute.
Speed in hour = 2*60 = 120 km/hour

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Filed Under: Time and Distance
Exam Prep: GRE

Q:

Which one is not the isotopes of hydrogen

A) Protium	B) Deuter
C) Tritium	D) All

Answer & Explanation Answer: C) Tritium

Explanation:

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Filed Under: Chemistry

Q:

Which one of the following is not radioactive

A) Astanine	B) Francium
C) Tritium	D) Zirconium

Answer & Explanation Answer: D) Zirconium

Explanation:

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Filed Under: Chemistry

Q:

Which one of the following can be used to confirm wether drinking water contains a gamma emitting isotope or not

A) Microscope	B) Scintillation counter
C) Lead plate	D) pectrophotometer

Answer & Explanation Answer: B) Scintillation counter

Explanation:

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Filed Under: Chemistry

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