69
Q:

A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct , then the correct answer would be :

A) 553681 B) 555181
C) 555681 D) 556581

Answer:   C) 555681



Explanation:

987 = 3 * 7 * 47.
So, the required number must be divisible by each one of 3, 7, 47
553681 => (Sum of digits = 28, not divisible by 3)
555181 => (Sum of digits = 25, not divisible by 3)
555681 is divisible by each one of 3, 7, 47.

Q:

Given that the mean of five numbers is 28. If one of them is excluded, the mean gets reduced by 5. Determine the excluded number.

 

A) 47 B) 45
C) 48 D) 46
 
Answer & Explanation Answer: C) 48

Explanation:
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3 918
Q:

The two given expressions on both the side of the ‘=’ sign will have the same value if two numbers from either side or both side are  interchanged. Select the correct numbers to be interchanged from the given options.

4 + 6 × 7 − 27 ÷ 3 = 7 × 8 − 4 + 39 ÷ 3

 

A) 8, 7 B) 6, 8
C) 3,4 D) 6,4
 
Answer & Explanation Answer: B) 6, 8

Explanation:
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4 1220
Q:

Four number-pairs have been given, out of which three are alike in some mannerandoneis different. Select the number-pair that is different.

 

A) 16, 8 B) 36, 2
C) 14,8 D) 28, 5
 
Answer & Explanation Answer: D) 28, 5

Explanation:
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2 1146
Q:

What is the smallest integer that is a multiple of 5, 8 and 15?

 

A) 600 B) 120
C) 60 D) 40
 
Answer & Explanation Answer: B) 120

Explanation:
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4 3943
Q:

Which number will fit in '?' place in the following series?

 

12, 23, 45, 89, ?

 

A) 175 B) 176
C) 177 D) 178
 
Answer & Explanation Answer: C) 177

Explanation:
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9 4909
Q:

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark (?) in figure C.

 

 

A) 61 B) 21
C) 16 D) 81
 
Answer & Explanation Answer: C) 16

Explanation:
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2 1392
Q:

The equation of a line is given by 4y-6x+9=0. Find the slope of other line which is perpendicular to it.

 

A) -2/3 B) 2/3
C) 3/2 D) -3/2
 
Answer & Explanation Answer: A) -2/3

Explanation:
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6 1435
Q:

What will be the 20th term in the given sequence?

 

-50, -47, -44, _

 

A) -10 B) 10
C) -7 D) 7
 
Answer & Explanation Answer: D) 7

Explanation:
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12 5750