1.

A Bottle Is Full Of Dettol. One-third Of It Is Taken Out And Then An Equal Amount Of Water Is Poured Into The Bottle To Fill It. This Operation Is Done Four Times. Find The Final Ratio Of Dettol And Water In The Bottle ?

Answer»

As in DENOMINATOR we have to take 1/3 four times so, we start by assuming 81 ml of DETTOL in the bottle. After the first ITERATION you will be left with

2/3 × 81 = 54 ml. After the second iteration you will be left with

2/3 × 54 = 36 ml. After the third iteration you will be left with

2/3 × 36 = 24 ml. After the fourth iteration you will be left with

2/3 × 24 = 16 ml. So the required RATIO will be 16 : (81 – 16) = 16 : 65

As in denominator we have to take 1/3 four times so, we start by assuming 81 ml of dettol in the bottle. After the first iteration you will be left with

2/3 × 81 = 54 ml. After the second iteration you will be left with

2/3 × 54 = 36 ml. After the third iteration you will be left with

2/3 × 36 = 24 ml. After the fourth iteration you will be left with

2/3 × 24 = 16 ml. So the required ratio will be 16 : (81 – 16) = 16 : 65


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