If a : b = 2 : 3 and b : c = 4 : 5, find a : b : c.

A. 8 : 12 : 15

B. 8 : 12 : 20

C. 2 : 3 : 5

D. 6 : 12 : 15

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cgl Save WhatsApp Report

1 answer

Best answer

Answer: A. 8 : 12 : 15

Answer: (A) 8 : 12 : 15

Shortcut: make b equal. Multiply the first ratio by 4 and the second by 3: a : b = 8 : 12 and b : c = 12 : 15.

So a : b : c = 8 : 12 : 15.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?