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Q:

A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ?

A) 25 B) 24
C) 23 D) 21
 
Answer & Explanation Answer: A) 25

Explanation:

(A+B+C) do 1 work in 10 days.

So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5


Remaining work=1-2/5=3/5

 

(B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50


Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25

A does 1/25 work in in 1 day

Therefore 1 work in 25 days.

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Filed Under: Time and Work
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128 52970
Q:

If tanα= 2 + 1, then the value of tanα - cotα is

 

A) √2 - 1 B) 2√2
C) 2 D) 1
 
Answer & Explanation Answer: C) 2

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

2 52947
Q:

Which number will complete the series?

0,1,4,15,?,325,1956

A) 60 B) 64
C) 75 D) 80
 
Answer & Explanation Answer: B) 64

Explanation:
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Filed Under: Number Series
Exam Prep: CAT

18 52916
Q:

Along the path of the vas deferens which glands add their secretions in the sperms?

 

I. Prostate

II. Seminal vesicles

III. Scrotum

 

A) Only I and III B) Only I and II
C) Only II and III   D) All I, II and III
 
Answer & Explanation Answer: B) Only I and II

Explanation:
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Filed Under: Biology
Exam Prep: Bank Exams

1 52848
Q:

Assume 57 + 59 + 109 = 0, then find the value of 573 + 593 + 1093

 

A) 1099701 B) 1099601
C) 1099801 D) 1098701
 
Answer & Explanation Answer: A) 1099701

Explanation:
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Filed Under: Simplification
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0 52800
Q:

A sarcomere is best described as a

 

A) fixed structural unit within a myofibril bounded by Z lines. B) moveable structural unit within a myofibril bounded by H zones.
C) moveable structural unit within a myofibril bounded by Z lines. D) fixed structural unit within a myofibril bounded by A bands.
 
Answer & Explanation Answer: C) moveable structural unit within a myofibril bounded by Z lines.

Explanation:
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Filed Under: Biology
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1 52793
Q:

What is the value of (2 + tan600) ?

 

A)  3   B)  2/√3  
C)  4/√3   D)  2+√3
 
Answer & Explanation Answer: D)  2+√3

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0 52781
Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) LFZ B) PJC
C) SMG   D) XRL
 
Answer & Explanation Answer: B) PJC

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 52743