A number of three digits and a total of ten. If the numbers are reversed, the middle digit equals the sum of the other two, and the number will be raised by 99. This is the number:
A. 145
B. 253
C. 370
D. 352
Answer:B
A number of three digits and a total of ten. If the numbers are reversed, the middle digit equals the sum of the other two, and the number will be raised by 99. This is the number:
A. 145 B. 253 C. 370 D. 352
Explanation: Let x be the middle digit.Then 2x = 10 or x = 5 is the case. So, either 253 or 352 is the answer.Because the number grows when the digits are reversed, the hundred's digits are smaller than the unit's digit.As a result, the needed number is 253.