If x:y=5:3, then (8x-5y): (8x-5y)=?

A 5:11

B 6:5

C 5:6

D 3:8

Correct Answer: 5:11

Let the desired speed be x km/hr ATQ, 40/20 + 40/x = 80/30 Or, 1/20 + 1/x = 2/30 Or, 1/x = 1/15 - 1/20 Or, 1/x = (4 - 3)/60 Or, x = 60 So, the desired speed is 60 km/hr

Bissoy MCQ Team

Jun 09, 2023

#গণিত #অনুপাত-সমানুপাত (Ratio-Proportion) #Sonali Bank Ltd #Senior Officer 01-06-2018

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