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Q:

In a mixture, the ratio of juice and water is 4 : 3. By adding 6 litre water the ratio of juice and water will be 8 : 7. What is the amount of juice in the original mixture ?

A) 38 lit B) 96 lit
C) 48 lit D) 52 lit
 
Answer & Explanation Answer: C) 48 lit

Explanation:

Let the amount of juice and water in original mixture '4x' litre and '3x' litre respectively.

According to given data,

4x/3x+6 =8/7

28x=24x+48

28x–24x=48

4x = 48

x = 12

Amount of juice = 4x = 4×12 = 48 litre.

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Filed Under: Alligation or Mixture
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

What will come in place of the question mark (?) in the following number series?

5, 7, ?, 25, 45, 75

A) 11 B) 13
C) 15 D) 19
 
Answer & Explanation Answer: B) 13

Explanation:

The series given follow the pattern

 

+2, +2+4, +2+4+6, +2+4+6+8, +2+4+6+8+10,...

 

Here ? = 7 + 2 + 4 = 13.

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Filed Under: Odd Man Out
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

Complete the number series given below ?

13        19       37      ?         141        243

A) 58 B) 67
C) 75 D) 96
 
Answer & Explanation Answer: C) 75

Explanation:

The given series follows the pattern that

exp.

So the missing number is  37 + 38 = 75

75 + 66 = 141

....

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Filed Under: Number Series
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Q:

What will be added to the unit digits of the number 86236 so that number will be divisible by 9  ?

A) 1 B) 2
C) 3 D) 0
 
Answer & Explanation Answer: B) 2

Explanation:

A number is divisible by 9 only if the sum of the digits of the number is divisible by 9.

Here 86236 = 8 + 6 + 2 + 3 + 6 = 25

We must add 2 to 25 to become 27 which is divisible by 9.

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Anu's present age is 9 years more than that of what Raj's age will be after five years. Raj's present age is seven years more than that of what Renu's age was 4 years ago. Renu's present age is 19 years. What will be Anu's age after 5 years ?

A) 39 yrs B) 36 yrs
C) 46 yrs D) 41 yrs
 
Answer & Explanation Answer: D) 41 yrs

Explanation:

Anu = (Raj + 5) + 9

= Raj + 14 -------- (I)

Raj = (Renu - 4) + 7

= Renu + 3 ------- (II)

Raj's age = 19 + 3 = 22 years

After 5 years Anu's age = 22 + 14 + 5 = 41 years

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Filed Under: Problems on Ages
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Q:

The ratio of the angles of a triangle is 3 : 4 : 5. The three angles of a quadrilateral is equal to three angles of this triangle. What is the sum of the largest angle and second smallest angle of the quadrilateral ?

A) 225 deg B) 210 deg
C) 205 deg D) 245 deg
 
Answer & Explanation Answer: A) 225 deg

Explanation:

Angle of triangle = 180 × 3/12

= 45 deg

Other angles of the triangle are = 60 deg, 75 deg

Angle of quadrilateral

= 360 - (45 + 60 + 75)

= 180 deg

Therefore, the four angles of the quadrilateral are 45, 60, 75 & 180 degrees.

Hence, the sum of largest and smallest angle of the quadrilateral are 180 + 45 = 225 deg.

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Filed Under: Ratios and Proportions
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Q:

Who has topped the Forbes Magazine’s list of the world’s highest paid actors 2017 ?

A) Vin Diesel B) Jacky Chan
C) Dwayne Johnson D) Mark Wahlberg
 
Answer & Explanation Answer: D) Mark Wahlberg

Explanation:
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Filed Under: Famous Personalities
Exam Prep: Bank Exams , CAT
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Q:

Who has been appointed as new Chairman of Indian Railway Board in August 2017 ?

A) Ashwani Lohani B) S. K. Bhagat
C) Akhil Agarwal D) A. K. Mittal
 
Answer & Explanation Answer: A) Ashwani Lohani

Explanation:

Ashwani Lohani is IRSME officer, appointed as new Chairman of the Indian Railway Board soon after A.K. Mittal stepped down from the post. He is former Chairman & Managing Director of Air India.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
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