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Q:

I. A, B, C, D, E and F are six members of a family.

II. One couple has parents and their children in the family.

III. A is the son of C and E is the daughter of A.

IV. D is the daughter of F who is the mother of E.

Who are the male members in the family ?

A) A and C	B) C and F
C) A, B and D	D) Cannot be determined

Answer & Explanation Answer: D) Cannot be determined

Explanation:

E is the daughter of A and F is the mother of E. So, A is the father of E and hence the husband of F. Now,

D is the daughter of F. So, D and E are the daughters of A and F Also. A is the son of C.

Now, only B remains. Thus, B and C are the parents of A.

The sex of B and C cannot be determined:

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Filed Under: Blood Relations

Q:

A clock is started at noon. By 10 minutes past 5, the hour hand has turned through

A) 145	B) 155
C) 165	D) 175

Answer & Explanation Answer: B) 155

Explanation:

Angle traced by hour hand in 12 hrs = 360º

Angle traced by hour hand in 5 hrs 10 min. i.e $\frac{31}{6}$ hrs = ${(\frac{360}{12} \times \frac{31}{6})}^{0}$ = $155^{0}$

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

Q:

Amy has to visit towns B and C in any order. The roads connecting these towns with her home are shown on the diagram. How many different routes can she take starting from A and returning to A, going through both B and C (but not more than once through each) and not travelling any road twice on the same trip?

A) 10	B) 8
C) 6	D) 4

Answer & Explanation Answer: B) 8

Explanation:

Amy can travel clockwise or anticlockwise on the diagram.

Clockwise, she has no choice of route from A to B, a choice of one out of two routes from B to C, and a choice of one out of two routes from C back to A. This gives four possible routes.

Similarly, anticlockwise she has four different routes.

Total routes = 8

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Filed Under: Time and Distance
Exam Prep: GRE

Q:

A sector of 120 degrees, cut out from a circle, has an area of 66/7 sq cm. Find the radius of the circle.

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

Answer & Explanation Answer: C) 3cm

Explanation:

$πr = \frac{66}{7}$

r =3

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

Q:

A rectangular lawn 55m by 35m has two roads each 4m wide running in the middle of it. One parallel to the length and the other parallel to breadth. The cost of graveling the roads at 75 paise per sq meter is

A) rs.58	B) rs.158
C) rs.258	D) rs.358

Answer & Explanation Answer: C) rs.258

Explanation:

area of cross roads = (55 x 4) + (35 x 4)- (4 x 4) = 344sq m

cost of graveling = 344 x (75/100) = Rs. 258

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

Q:

A semicircular shaped window has diameter of 63cm. Its perimeter equals

A) 162	B) 132
C) 142	D) 172

Answer & Explanation Answer: A) 162

Explanation:

perimeter of window = $π$ r+2r

= [(22/7) x (63/2) + 63] = 99+63 = 162 cm

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

Q:

A parallelogram has sides 30m and 14m and one of its diagonals is 40m long. Then its area is

A) 136	B) 236
C) 336	D) 436

Answer & Explanation Answer: C) 336

Explanation:

let ABCD be the given parallelogram

area of parallelogram ABCD = 2 x (area of triangle ABC)

now a = 30m, b = 14m and c = 40m

s=1/2 x (30+14+40) = 42

Area of triangle ABC = $\sqrt{[s (s - a) (s - b) (s - c)]}$

= $\sqrt{[42 (12) (28) (2)]}$ = 168sq m

area of parallelogram ABCD = 2 x 168 = 336 sq m

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

Q:

Find the perimeter and area of a square that has a side of length 14 feet.

A) 176	B) 186
C) 196	D) 206

Answer & Explanation Answer: C) 196

Explanation:

Perimeter of a square p=4s ,where s=length of its side

=> p=4(14)=56 feets

Area of a square A = s x s

=> A=196

The perimeter is 56 feet, and the area is 196 square feet.

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

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