Question
The sum of three numbers is 172. The ratio of the first and second numbers is 8:11. The ratio of the second and third is 5:7. Find the second number.
Answer: Option B
LET THE NUMBERS BE A, B AND C. A+B+C = 172 A:B = 8:11 B:C = 5:7 11A = 8B A = 8B/11 7B = 5C C = 7B/5 (8B/11)+B+(7B/5) = 172 40B+55B+77B = 172*55 172B = 172*55 B=55
Was this answer helpful ?
LET THE NUMBERS BE A, B AND C. A+B+C = 172 A:B = 8:11 B:C = 5:7 11A = 8B A = 8B/11 7B = 5C C = 7B/5 (8B/11)+B+(7B/5) = 172 40B+55B+77B = 172*55 172B = 172*55 B=55
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution