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Q:

A ‘breath test’ used by traffic police to check drunken driving uses ____?

A) Turmeric on filter paper B) Silica gel coated with silver nitrate
C) potassium permanganate-sulphuric acid D) Potassium dichromatic-sulphuric acid
 
Answer & Explanation Answer: D) Potassium dichromatic-sulphuric acid

Explanation:
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Filed Under: Chemistry
Exam Prep: AIEEE

114 31138
Q:

If 7*7 = 140, 6*1 = 70 and 3*5 = 80, then find the value of 4*4 = ?

 

A) 60 B) 80
C) 10 D) 40
 
Answer & Explanation Answer: B) 80

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

6 31136
Q:

Find the missing number in the given number series?

1 8 36 ? 1100 7701

A) 97 B) 129
C) 164 D) 183
 
Answer & Explanation Answer: D) 183

Explanation:

The given number series is 1 8 36 ? 1100 7701

It follows a pattern that,

 

1

1 x 3 + 5 = 8

8 x 4 + 4 = 36

36 x 5 + 3 = 183

183 x 6 + 2 = 1100

1100 x 7 + 1 = 7701

 

Hence, the missing number in the given series is 183.

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

13 31132
Q:

The cost of fencing a square field @ Rs. 20 per metre is Rs.10.080.How much will it cost to lay a three meter wide pavement along the fencing inside the field @ Rs. 50 per sq m

A) 53800 B) 43800
C) 83800 D) 73800
 
Answer & Explanation Answer: D) 73800

Explanation:

perimeter = total cost / cost per m = 10080 /20 = 504m
side of the square = 504/4 = 126m
breadth of the pavement = 3m
side of inner square = 126 - 6 = 120m
area of the pavement = (126 x126) - (120 x 120) = 246 x 6 sq m
cost of pavement = 246*6*50 = Rs. 73800

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

30 31105
Q:

k purchased a table for Rs.11,000 and sold it for Rs.13,500.what is his gain  in percentage?

A) 19.8% B) 20.6%
C) 22.7% D) 22%
 
Answer & Explanation Answer: A) 19.8%

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Filed Under: Inventions
Exam Prep: Bank Exams

9 31101
Q:

From the given words, select the word which cannot be formed using the letters of the given word.

JAUNTILY

A) NEATLY B) AUNTY
C) JAUNT D) UNITY
 
Answer & Explanation Answer: A) NEATLY

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Filed Under: Alphabet Test
Exam Prep: Bank Exams

0 31048
Q:

A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C which is at midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ? 

A) 180 km B) 160 km
C) 140 km D) 120 km
 
Answer & Explanation Answer: A) 180 km

Explanation:

Speed in downstream = (14 + 4) km/hr = 18 km/hr;

Speed in upstream = (14 – 4) km/hr = 10 km/hr.

Let the distance between A and B be x km. Then,

x/18 + (x/2)/10 = 19 ⇔ x/18 + x/20 = 19 ⇒ x = 180 km.

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Filed Under: Boats and Streams
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

91 31038
Q:

Which of the statements given below are correct?

 

A) Grigor Dimitrov won the Tennis 2017 ATP World Tour Finals Men's Singles.

B) In 2017, Sergio Aguero played for the Premier League team Liverpool.

C) In 2017, Rohit Sharma captained the IPL team Mumbai Indians.

 

A) Both A and C B) Both A and B
C) A, B and C D) None of these
 
Answer & Explanation Answer: A) Both A and C

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Filed Under: Sports
Exam Prep: Bank Exams

1 31025