38
Q:

The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is :

A) 100 B) 200
C) 300 D) 400

Answer:   D) 400



Explanation:

Let the numbers be x and y.

 

Then, xy = 9375 and  x/y = 15.

 

xyxy=9375/15

 

=>y2 =625

 

=> y = 25

 

=> x = 15y = 15 x 25 = 375.

 

Sum of the numbers = 375 + 25 = 400.

Q:

A positive number when decreased by 4, is equal to 21 times the reciprocal of this number. The number is

A) 3 B) 7
C) 5 D) 9
 
Answer & Explanation Answer: B) 7

Explanation:
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0 45
Q:

How many numbers are there from 200 to 800 which are neither divisible by 5 nor by 7?

 

A) 407   B) 410  
C) 413   D) 411  
 
Answer & Explanation Answer: D) 411  

Explanation:
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2 216
Q:

How many natural numbers less than 500, when divided by 35 and 49, will leave a remainder of 30 in each case?

 

 

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

Explanation:
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0 124
Q:

If the nine-digit number 708x6y8z9 is divisible by 99, then what is the value of x + y + z?

 

A) 5 B) 27
C) 16 D) 9
 
Answer & Explanation Answer: C) 16

Explanation:
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0 233
Q:

If the given number 925x85 is divisible by 11, then the smallest value of x is:

 

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

Explanation:
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0 532
Q:

What x is added to each of 10, 16, 22 and 32, the numbers so obtained in this order are in proportion? What is the mean proportional between the numbers (x + 1) and (3x + 1)?

 

A) 12 B) 9
C) 15 D) 10
 
Answer & Explanation Answer: C) 15

Explanation:
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0 108
Q:

When a positive integer is divided by d, the remainder is 15. When ten times of the same number is divided by d. the remainder is 6.
The least possible value of d is:

 

A) 9 B) 16
C) 18 D) 12
 
Answer & Explanation Answer: B) 16

Explanation:
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1 182
Q:

The greatest number which should be replace '*’ in the number 146*48 to make t divisible by 8 is:

 

A) 8 B) 9
C) 2 D) 0
 
Answer & Explanation Answer: A) 8

Explanation:
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1 1467