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Q:

How many times in a day, are the hands of a clock in straight line but opposite in direction?

A) 11	B) 22
C) 33	D) 44

Answer & Explanation Answer: B) 22

Explanation:

The hands of a clock point in opposite directions (in the same straight line) 11 times in every
12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).
So, in a day, the hands point in the opposite directions 22 times

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

How many times are the hands of a clock at right angle in a day?

A) 44	B) 54
C) 64	D) 22

Answer & Explanation Answer: A) 44

Explanation:

In 12 hours, they are at right angles 22 times.
$\therefore$ In 24 hours, they are at right angles 44 times.

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

At 3.40, the hour hand and the minute hand of a clock form an angle of:

A) 110	B) 120
C) 130	D) 140

Answer & Explanation Answer: C) 130

Explanation:

Angle traced by hour hand in 12 hrs. = 360º.

Angle traced by it in $\frac{11}{3}$ hrs = ${(\frac{360}{12} \times \frac{11}{3})}^{0}$ = $110^{0}$

Angle traced by minute hand in 60 min. = $360^{0}$

Angle traced by it in 40 min = ${(\frac{360}{60} \times 40)}^{0}$ = $240^{0}$

$\therefore$ Required angle (240 - 110)º = $130^{0}$

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:

A) 0	B) 10
C) 30	D) 60

Answer & Explanation Answer: B) 10

Explanation:

Angle traced by hour hand in $\frac{13}{3}$ hrs = ${(\frac{360}{12} \times \frac{13}{3})}^{0}$ = $130^{0}$

Angle traced by min. hand in 20 min = ${(\frac{360}{60} \times 20)}^{0}$ = $120^{0}$

Required angle = (130 - 120)º = 10º

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

Who present the theory of radioactive disintegration

A) Rutherford and Soddy	B) Soddy and Fajan
C) Thomson and Rutherford	D) Hahn and strassman

Answer & Explanation Answer: A) Rutherford and Soddy

Explanation:

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Filed Under: Chemistry

Q:

Shobha is the niece of Ashish. Ashish's mother is Priya. Kamla is Priya's mother. Kamla's husband is Hari. Krishna is the mother-in-law of Hari. How is Shobha related to Hari ?

A) Daughter	B) Great Grand daughter
C) Grandniece	D) Great Grandson's daughter

Answer & Explanation Answer: B) Great Grand daughter

Explanation:

Shubha is the niece of Atthish means Ashish as the uncle of Shottha Now. Priyais Ashish's mother

So, Priya is the grandmother of Shobha. Hari is Priya's father. So, Shobha is the great granddaughter of Hari.

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Filed Under: Blood Relations

Q:

In a family, there are six members A, B, C, D, E and F.

A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is F related to C ?

A) Mother	B) Sister
C) Aunt	D) Sister-in-law

Answer & Explanation Answer: A) Mother

Explanation:

A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E, who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A.

F is the mother of A and C is the brother of A. So, F is the mother C.

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Filed Under: Blood Relations

Q:

In a family, there are six members A, B, C, D, E and F.

A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died.

How many male members are there in the family ?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: C) 3

Explanation:

A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E, who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A.

A is a male. B. the wife, is female. C. the brother, is male. D. the son, is male. E, the sister, is female. F, the mother, is a female. So, there are three males.

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Filed Under: Blood Relations

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