6
Q:

A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is :

A) 253 B) 263
C) 273 D) 283

Answer:   A) 253



Explanation:

Let the middle digit be x.

Then, 2x = 10 or x = 5. So, the number is either 253 or 352

Since the number increases on reversing the digits, so the hundred's digit is smaller than the unit's digit.

Hence, required number = 253.

Q:

If a 10-digit number 1230x558y2 is divisible by 88, then the value of (5x + 5y) is:

 

A) 40 B) 20
C) 50 D) 30
 
Answer & Explanation Answer: A) 40

Explanation:
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0 237
Q:

If an 8-digit number 30x558y2 is divisible by 88, then the value of (6x +6y) is:

 

A) 30 B) 35
C) 42 D) 66
 
Answer & Explanation Answer: C) 42

Explanation:
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0 899
Q:

If the seven digit number 54x29y6 (x > y)is divisible by 72, what is the value of (2x + 3y)?

 

A) 38 B) 13
C) 32 D) 23
 
Answer & Explanation Answer: D) 23

Explanation:
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0 2359
Q:

Which among the following numbers is exactly divisible by 7, 11 and 13 ?

 

A) 14982 B) 15004
C) 14993 D) 15015
 
Answer & Explanation Answer: D) 15015

Explanation:
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0 8041
Q:

Which among the following numbersis exactly divisible by 11, 13 and 7?


(a) 624613


(b) 624624


(c) 624635


(d) 624646

 

A) (b) B) (c)
C) (a) D) (d)
 
Answer & Explanation Answer: A) (b)

Explanation:
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0 4821
Q:

The ten-digit number 2x600000y8 is exactly divisible by 24. If x ≠ 0 and y ≠ 0, then the least value of (x + y) is equal to:

 

A) 5 B) 8
C) 9 D) 2
 
Answer & Explanation Answer: A) 5

Explanation:
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0 246
Q:

The 10-digit number 79x00001y6 is exactly divisible by 88. What is the value of (x + 3)?

 

A) 5 B) 9
C) 6 D) 7
 
Answer & Explanation Answer: B) 9

Explanation:
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0 8571
Q:

Divide 27 into two parts so that 5 times the first and 11 times the second together equals to 195. Then ratio of the first and second parts is

 

A) 17 : 10 B) 3 : 2
C) 2 : 7 D) 5 : 4
 
Answer & Explanation Answer: A) 17 : 10

Explanation:
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0 318