RRB Junior Engineer / DMS / CMA 2015 · Question 3 of 480

If a: b = 5 :6 and b: c = 3 :4, then c: a is

Mathematics - Miscellaneous

Aa. 4:5
Bb. 5 : 4
Cc. 8 : 5Correct
Dd. 5 : 8

Answer: C. c. 8 : 5

Explanation

Here, — = - and — = - b 6 c 4 a 5 c 8 > — = -=>- = — c 8 a 5 => c : a = 8: 5

Source: Arihant RRB JE Solved Paper 26-Aug-2015 (3rd Shift), Q91–150 — published solved-paper compilation (Q1–90 technical not included in this source) · memory-based

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