Three co prime integers exist such that the product of the first two is 551 and the product of the final two is 1073. The three digits add up to:
A. 75
B. 81
C. 85
D. 89
Answer:C
Three co prime integers exist such that the product of the first two is 551 and the product of the final two is 1073. The three digits add up to:
A. 75 B. 81 C. 85 D. 89
Explanation: Because the numbers are co-prime, the common factor is simply one.Furthermore, the middle number is shared by the two items.As a result, the middle number equals the H.C.F. of 551 and 1073 = 29;The first number is 551/29, which equals 19, and the third number is 1073/29, which equals 37,19 + 29 + 37 = 85 is the required total.