18
Q:

# In a group of buffaloes and ducks, the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?

 A) 6 B) 10 C) 8 D) 12

Answer:   D) 12

Explanation:

Let the number of buffaoes be x and number of ducks be y.

Then 4x + 2y = 2(x + y) + 24

=> 2x = 24

=> x = 12.

Q:

1.123 + 11.23 + 112.3 = ?

 A) 123.453 B) 124.653 C) 125.253 D) 123.953

Answer & Explanation Answer: B) 124.653

Explanation:
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0 1930
Q:

Find the factors of ?

 A) x - 11x - 12 B) (x + 12)(x - 11) C) (x + 11)(x + 12) D) (x - 12)(x + 11)

Answer & Explanation Answer: D) (x - 12)(x + 11)

Explanation:
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2 2102
Q:

What is the simplified value of  ?

 A) 9 B) 10 C) 18 D) 20

Answer & Explanation Answer: C) 18

Explanation:
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0 2624
Q:

What is the value of ?

 A) 2 B) 3 C) 4 D) 5

Answer & Explanation Answer: B) 3

Explanation:
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0 3837
Q:

The two equations are 4x + 4ky-6=0 and x+6y-12=0. Find the value of k for the pair of two linear equations represents the parallel lines.

 A) 2 B)  6 C) 8 D) 10

Answer & Explanation Answer: B)  6

Explanation:
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1 190
Q:

Find the y-intercept of the line joining two points (1, 3) and (3, 5).

 A) -2 B) 0 C) 2 D) 4

Answer & Explanation Answer: C) 2

Explanation:
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0 1447
Q:

Calculate the total numbers of prime factors in the expression .

 A) 35 B)  36 C) 37 D) 38

Answer & Explanation Answer: D) 38

Explanation:
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0 248