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Q:

Raghu can complete a work in 12days working 9 hours a day. Arun can complete the same work in 8 days working 11 hours a day. If both Raghu and Arun work together, working 12 hours a day, in how many days can they complete the work ?

A) $3 \frac{4}{49} d a y s$

B) $12 \frac{4}{49} d a y s$

C) $4 \frac{3}{49} d a y s$

D) $4 \frac{12}{49} d a y s$

A) Option A	B) Option B
C) Option C	D) Option D

Answer & Explanation Answer: C) Option C

Explanation:

Raghu can complete the work in (12 x 9)hrs = 108 hrs.

Arun can complete the work in (8 x 11)hrs = 88 hrs.

Raghu's 1 hrs work = 1/108 and Arun's 1 hrs work = 1/88

(Raghu + Arun)'s 1 hrs work = $(\frac{1}{108} + \frac{1}{88}) = \frac{49}{2376}$

So, both Raghu and Arun will finish the work in $\frac{2376}{49} h r s$

Number of days of 12 hours each= $(\frac{2376}{49} \times \frac{1}{12})$ = $\frac{198}{49} = 4 \frac{3}{49} d a y s$

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Filed Under: Time and Work
Exam Prep: GATE , CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

Q:

Which number replaces 'x' in the below figure ?

k11483336561.jpg image

A) 2	B) 9
C) 11	D) 12

Answer & Explanation Answer: B) 9

Explanation:

k11483336735.jpg image

Here in 2nd column if you add the individual digits

we get 3 + 7 + 0 =10 , 2 + 2 + 4 = 8 , 7 + 3 + 0 = 10

7 10 3 --> 7+3 =10

6 8 2 --> 6+2 =8

x 10 1 --> x+1 =10

Here we can observe that by adding 1st and 3rd column elements we get 2nd column elements

--> x = 9

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Filed Under: Inserting The Missing Character
Exam Prep: GRE , GATE , CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

Q:

In a note collection, there is one new Rs.2000 note for every three old Rs.500 notes. 10 more new Rs.2000 notes are added to the collection and the ratio of new Rs.2000 notes to old Rs.500 notes would be 1: 2. Based on the information, the total number of notes in the collection now becomes?

A) 60	B) 30
C) 70	D) 90

Answer & Explanation Answer: D) 90

Explanation:

Let 'x' be the number of new Rs.2000 notes.

Given for one new 2000 note there are three old 500 notes.

i.e, 3x

Given 10 more new Rs.2000 notes are added to the collection
and the ratio of new Rs.2000 notes to old Rs.500 notes

$\frac{x + 10}{3 x} = \frac{1}{2} \Rightarrow x = 20$

Therefore, number of new Rs.2000 notes = x+10 = 30.

old Rs.500 notes = 3x = 60.

Thus, the total number of notes in the collection = 30 + 60 = 90.

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Filed Under: Arithmetical Reasoning
Exam Prep: CAT
Job Role: Bank PO

Q:

What value replaces " ? " in the below figure ?

k551483003228.jpg image

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

Answer & Explanation Answer: D) 1

Explanation:

Here it follows

$\frac{42}{6} - \frac{15}{3} = 2$ and $\frac{38}{19} - \frac{20}{10} = 0$

In the same way $\frac{39}{9} - \frac{9}{3} = 1$

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Filed Under: Inserting The Missing Character
Exam Prep: Bank Exams
Job Role: Bank Clerk

Q:

Conditions:

I is brother of J

K is father of I

L is brother of M

M is daughter of J , then

Who is I to L?

A) Grand father	B) Uncle
C) Son	D) Brother

Answer & Explanation Answer: B) Uncle

Explanation:

k331482992185.jpg image

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Filed Under: Blood Relations
Exam Prep: GATE
Job Role: Network Engineer

Q:

What replaces "?" in the below figure?

k11482901675.jpg image

A) 35	B) 34
C) 26	D) 24

Answer & Explanation Answer: C) 26

Explanation:

Here $\frac{14 \times 15}{21}$ = 10 and $\frac{32 \times 14}{28}$ = 16

In the same way $\frac{24 \times 26}{24}$ = 26.

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Filed Under: Inserting The Missing Character
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

12:30 :: 14: ?

A) 36	B) 28
C) 35	D) 42

Answer & Explanation Answer: C) 35

Explanation:

Here 12 x 2.5 = 30

In the same way 14 x 2.5 = 35

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Filed Under: Mathematical Operations
Exam Prep: Bank Exams
Job Role: Bank Clerk

Q:

A bus for Shiridi leaves after every fifty two minutes from a bus stand. An enquiry officer told a passenger that the bus had already left sixteen minutes ago and the next bus will leave at 08:15 p.m. At what time did the enquiry officer give the information to the passenger?

A) 07:23 p.m	B) 06:25 p.m
C) 07:39 p.m	D) 06:23 p.m

Answer & Explanation Answer: C) 07:39 p.m

Explanation:

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: Bank Exams
Job Role: Bank PO

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