Q:

By what least number should 1200 be multiplied so that it becomes a perfect square?

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

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0 943
Q:

The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?

A) 25 B) 29
C) 21 D) 33
 
Answer & Explanation Answer: C) 21

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1 941
Q:

The co-ordinates of the centroid of a triangle ABC are (-1,-2) what are the co-ordinates of vertex C, if co-ordinates of A and B are (6,-4) and (-2,2) respectively?

A) (-7,-4) B) (7,4)
C) (7,-4) D) (-7,4)
 
Answer & Explanation Answer: A) (-7,-4)

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0 939
Q:

ΔABC is right angled at B. BD is an altitude. DC = 9 cm and AC = 25 cm. What is the value of BC (in cm)?

A) 12 B) 18
C) 16 D) 15
 
Answer & Explanation Answer: D) 15

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1 932
Q:

What is the sum of all prime numbers between 60 and 80?

A) 272 B) 284
C) 351 D) 414
 
Answer & Explanation Answer: C) 351

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0 927
Q:

Find the average of all prime numbers between 20 and 50.

A) 35.857 B) 35.657
C) 34.857 D) 36.657
 
Answer & Explanation Answer: A) 35.857

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1 919
Q:

If the 1st and the 3rd term of an arithmetic progression are -10 and -4, what is the 12th term?

A) 26 B) 20
C) 17 D) 23
 
Answer & Explanation Answer: D) 23

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0 912
Q:

Which of the following numbers is completely divisible by 99?

A) 51579 B) 51557
C) 55036 D) 49984
 
Answer & Explanation Answer: A) 51579

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0 893