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Q:

The average age of a couple and their son was 40 years, the son got married and a child was born just two years after their marriage. When child turned to 10 years, then the average age of the family becomes 38 years. What was the age of the daughter in law at the time of marriage ?

A) 12 years	B) 10 years
C) 14 years	D) 13 years

Answer & Explanation Answer: A) 12 years

Explanation:

Given the average age of couple and their son = 40

=> Sum of age (H +W +S) = 40×3

Let the age of daughter in law at the time of marriage = D years

Now after 10 years,

(H + S +W) + 3×12 + D +12 + 10 = 38×5

178 + D = 190

D = 190 -178 = 12 years

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Filed Under: Problems on Ages
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Q:

Rajeev's age is four more than the age of Shilpa. The age of Shilpa can be obtained by subtracting four times her age 4 years ago from the four times her age after 4 years. What was Rajeev's age before 4 years ?

A) 36 years	B) 28 years
C) 32 years	D) 40 years

Answer & Explanation Answer: C) 32 years

Explanation:

Let Shilpa's present age is p years

According to question,

p = 4(x+4) – 4(x–4)

p = 4x+16 – 4x+16

p = 32

Shilpa's present age = 32 years

Rajeev is four years older than Shilpa

=> Shilpa's present age = Rajeev's age 4 years before.

=> Rajeev's age 4 years before = 32 years.

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Filed Under: Problems on Ages
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Q:

Uma sold an article for 3400 and got a profit of 25%. If he had sold the article for Rs. 3265. How much profit% would Uma have got ?

A) 22%	B) 27%
C) 20%	D) 18%

Answer & Explanation Answer: C) 20%

Explanation:

Given

125% ---- 3400

=> 100% ---- ?

=> ? = 3400x100/125 = 2720

=> Cost price of the article = Rs. 2720

Profit when article sold at Rs. 3265 = 3265 - 2720 = 545

Hence, Profit% = Gain x 100/cost price

=> P% = 545 x 100/2720

=> P% = 20%

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Statements :
All kids are God.
No God is a Human.
Some Human are Son.
All Son are Men.

Conclusions :
(a) Some Son are not God.
(b) Some Men are Human.

A) Only A follows	B) Only B follows
C) Both (A) and (B) follows	D) Neither (A) nor (B) follows

Answer & Explanation Answer: C) Both (A) and (B) follows

Explanation:

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Filed Under: Statement and Conclusions
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

A man can row 8 kmh in still water. If the river is running at 2 kmh, it takes 4 hrs more upstream than to go downstream for the same distance. Then the distance is given by

A) 54 kms	B) 32 kms
C) 45 kms	D) 60 kms

Answer & Explanation Answer: D) 60 kms

Explanation:

Let the distance be d.

$\frac{d}{8 - 2} - \frac{d}{8 + 2} = 4$

=> 2d = 120

=> d = 60 kms.

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Filed Under: Boats and Streams
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

In a family of six person O, N, M, R, Q and P each play one game out of six games viz. Football, Hockey, Golf, Tennis, Cricket and Basketball. There are two married couples. N who play Hockey is daughter-in-law of Q. O is the father of R who is Golf player. R is the father of M who is a cricketer. P is the brother of M. Football is not played by any female member. Q's husband play Basketball.

Questions :

1. How is M related to Q ?

2. Which person play Tennis ?

Answer

Q(f) - O(m)

(Tennis) (Basketball)

|

R(m) - N(f)

(Golf) (Hockey)

|

M P(m)

(Cricketer) (Football)

Answer 1: Can't be determined because M may be Grandson or Grand daughter of Q.

Answer 2: Q plays Tennis.

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Subject: Deriving Conclusions From Passages Exam Prep: Bank Exams , CAT , GATE , GRE , TOEFL
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Q:

Which player has won the Gold Medal at World Badminton Championship 2017 ?

A) Nozomi Okuhara	B) Saina Nehwal
C) Carolina Marin	D) P V Sindhu

Answer & Explanation Answer: A) Nozomi Okuhara

Explanation:

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Filed Under: Sports
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Q:

At an examination in which maximum marks are 500. K got 10% less than L, L got 25% more than M and M got 20% less than N. If K got 360 marks what percentage of marks was obtained by N ?

A) 80	B) 87
C) 78	D) 76

Answer & Explanation Answer: A) 80

Explanation:

Let marks obtained by N = x

M's marks = 0.80x

L's marks = 1.25 (0.80x)

K's marks = (0.90) (1.25) (0.80x)

= 0.9x

But 0.9x = 360 ⇒ x = 400

Percentage of Marks obtained by N

= 400 x 100/500 = 80%

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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