2 years ago in Problems on Numbers

# 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] 145
[B] 253
[C] 370
[D] 352

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## Related Questions

• [A] 9600.0
• [B] 9000.0
• [C] 9400.0
• [D] 9800.0
• [E] 9999.0

### Which two digit number (whose Unit digit is greater than tens digit) which when subtracted from the number formed by reversing its digits as well as when added to the number formed by reversing its digits, result in a perfect square.

• [A] 54
• [B] 65
• [C] 56
• [D] 51
• [E] None of these

### Which of the following are prime numbers?

• [A] 241
• [B] 303
• [C] 111
• [D] 121
• [E] None of these

### Two cyclists begin training on an oval racecourse at the same time. The professional cyclist completes each lap in 4 minutes; the novice takes 6 minutes to complete each lap. How many minutes after the start will both cyclists pass at exactly the same spot where they began to cycle?

• [A] 10
• [B] 8
• [C] 14
• [D] 12
• [E] NONE OF THESE

• [A] 11 & 9
• [B] 7 & 11
• [C] 13 & 11
• [D] 11 & 13
• [E] 15 & 13