If the ratio of speed of doing work of the persons is 1 : 3 : 5 , what is the ratio of this taken by these people to do the same amount of work ?

A 15 : 5 : 3
B 15 : 5 : 7
C 3 : 15 : 5
D 15 : 3 : 5

Correct Answer: 15 : 5 : 3

Given, 1 : 3 : 5 It is 11:13:15 = 1×15:13×15 :15×15 = 15 :5:3
Bissoy MCQ
#গণিত #অনুপাত-সমানুপাত (Ratio-Proportion) #Combined Bank (সমন্বিত ব্যাংক) #জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

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