0
Q:

If cos 45° - sec 60° = x, then the value of x is

A) (√3-4)/2√3 B) 1
C) (1-2√2)/√2 D) (√3+√2)/2

Answer:   C) (1-2√2)/√2



Explanation:
Q:

In ΔPQR measure of angle Q is 90°. If cosP = 5/13, and PQ = 2.5cm, then what is the length (in cm) of side PR?

A) 6 B) 6.5
C) 4 D) 5.6
 
Answer & Explanation Answer: B) 6.5

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0 21
Q:

ΔPQR is right angled at Q. If m∠P = 45°, then find the value of (cosecR + 1/3).

A) (√3+2)/2√3 B) (√3+2)/2
C) (3√2+1)/3 D) (2+2√3)/√3
 
Answer & Explanation Answer: C) (3√2+1)/3

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0 21
Q:

If √20 + √125 = 15.65, then what is the value of √45 + √5?

A) 6.98 B) 8.94
C) 9.98 D) 11.27
 
Answer & Explanation Answer: B) 8.94

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0 28
Q:

If XY = a+23 and YX = 13, then find the value of X2 + Y2X2 - Y2.

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

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0 26
Q:

If 3√7 + √343 = 19.21, then find the value of √252 + 20√7.

A) 39.4 B) 49.9
C) 56.8 D) 92.3
 
Answer & Explanation Answer: B) 49.9

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0 21
Q:

Solve the following :

60 ÷ 5 × 16 - 8 ÷ 2 ÷ 3 = ?

A) 3 B) 48
C) 1 D) 1/3
 
Answer & Explanation Answer: B) 48

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1 34
Q:

The number of solutions of the pair of linear equations x + 2y - 8 = 0 and 2x + 4y = 16 is

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

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2 36
Q:

Solve the following

78 ÷[-4 + -3 of 27 ÷ -18 ÷ -2]

A) -6 B) 13
C) 6 D) 15.6
 
Answer & Explanation Answer: A) -6

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0 22