Searching for "13"

Q:

If θ be positive acute angle and 5cosθ + 12sinθ = 13, then the value of cosθ is

A) 12/13 B) 5/13
C) 5/12 D) 1/5
 
Answer & Explanation Answer: B) 5/13

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Q:

The surface area of a sphere is 1386 cm2.  Find its diameter (in cm)

A) 10.5 B) 42
C) 21 D) 31.5
 
Answer & Explanation Answer: C) 21

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Q:

A piece of paper is folded and punched as shown in the figure. From the given alternatives, indicate how it will appear when opened?

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

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Filed Under: Paper Folding

Q:

From the given answer figures, select the one in which the question figure is hidden.

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

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Q:

If 24x2=84, and 32x3=69, then 13x3=?

A) 38 B) 93
C) 16 D) 10
 
Answer & Explanation Answer: B) 93

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Q:

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 1,3,7,13,21,?

A) 27 B) 29
C) 31 D) 33
 
Answer & Explanation Answer: C) 31

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Q:

If Mohan purchase 13 articles for Rs 12 and sells all the articles at the rate of 12 articles for Rs 13, then what will be the profit percentage?

A) 19.47 B) 17.36
C) 11.11 D) 12.5
 
Answer & Explanation Answer: B) 17.36

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Filed Under: Profit and Loss

Q:

If x + (1/x) = √13, then what is the value of x5 – (1/x5)?

A) 169 B) 169√3
C) 393 D) 507
 
Answer & Explanation Answer: C) 393

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