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Q:

Choose the word which is least like the others word in a group?

A) Burrow B) Roof
C) Den D) Nest
 
Answer & Explanation Answer: B) Roof

Explanation:

All except roof are dwelling places of different animals.

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Filed Under: Classification

Q:

Choose the word which is least like the others word in a group?

A) Sparrow B) Parrot
C) Swan D) Vulture
 
Answer & Explanation Answer: C) Swan

Explanation:

Only swan is a water bird

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Filed Under: Classification

Q:

Choose the word which is least like the others word in a group?

A) Lima B) Algiers
C) New York D) Tokyo
 
Answer & Explanation Answer: C) New York

Explanation:

All except New York are capital cities

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Filed Under: Classification

Q:

Choose the word which is least like the others word in a group?

A) Day B) Calendar
C) Date D) Month
 
Answer & Explanation Answer: B) Calendar

Explanation:

All others are parts of a calendar.

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Q:

Choose the word which is least like the others word in a group?

A) Arm B) Finger
C) Shoulder D) Foot
 
Answer & Explanation Answer: D) Foot

Explanation:

All except foot are parts of hand

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Q:

Salaries of Ravi and Sumit are in the ratio 2:3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40:57. What is Sumit's salary?

A) 38000 B) 46800
C) 36700 D) 50000
 
Answer & Explanation Answer: A) 38000

Explanation:

Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively.
Then,
(2x+4000) / (3x+4000) = 40 / 57
⇒ 57 × (2x + 4000) = 40 × (3x+4000)
⇒ 6x = 68,000
⇒ 3x = 34,000
Sumit's present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000

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Filed Under: Ratios and Proportions

Q:

Seats for Mathematics, Physics and Biology in a school are in the ratio 5:7:8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?

A) 1:2:3 B) 2:3:4
C) 3:4:5 D) 4:5:6
 
Answer & Explanation Answer: B) 2:3:4

Explanation:

Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.
Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).
⇒ [(140/100) × 5x],[(150/100) × 7x] and [(175/100) × 8x]
⇒ 7x, 21x/2 and 14x.

⇒ The required ratio =7x : 21x/2 : 14x
⇒ 14x : 21x : 28x
⇒ 2 : 3 : 4

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Filed Under: Ratios and Proportions

Q:

A sum of Rs.312 was divided among 100 boys and girls in such a way that the boy gets Rs.3.60 and each girl Rs. 2.40 the number of girls is

A) 35 B) 40
C) 45 D) 50
 
Answer & Explanation Answer: B) 40

Explanation:

Step (i): Let x be the number of boys and y be the number of girls.
Given total number of boys and girls = 100
x+y=100 -------------- (i)

Step (ii): A boy gets Rs. 3.60 and a girl gets Rs. 2.40
The amount given to 100 boys and girls = Rs. 312
3.60x + 2.40y = 312 -------------- (ii)

Step (iii):
Solving (i) and (ii)
3.60x + 3.60y = 360 --------- Multiply (i) by 3.60
3.60x + 2.40y = 312 --------- (ii)
1.20y = 48
y = 48 / 1.20
= 40

 Number of girls = 40

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Filed Under: Ratios and Proportions