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The Answer is 'A' i.e. 3/5

Tom ate 1/4 = 25%
Jane ate 1/5 of the remaining 75% = 15%

So, The total Tom and Jane ate is 40%

Remaining is 60% = 60/100 = 3/5.

You can solve this either by percentage or by fractions, whatever you feel comfortable in.
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Chethan92
Tom ate 1/4. Remaining is 3/4
Jane ate 1/5 of 3/4, i.e, 1/5*3/4 = 3/20.
Remaining is 17/20.

Bunuel sir, are the options correct?

Hi Chethan,
The problem with your solution is the subtraction part.

Tom ate 1/4, Jane ate 3/20, till here it is correct. So the total pizza eaten is 1/4+3/20 = 8/20

The portion of pizza remaining = 1-(8/20) = 12/20 = 3/5
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Bunuel
Tom ate 1/4 of a whole pizza, and Jane ate 1/5 of the remaining portion. What fraction of the pizza was not eaten?

A. 3/5
B. 11/20
C. 9/20
D. 2/5
E. 3/20

total = 20
tom ate = 5
left 15
jane ate 3
left 12
12/20 = 3/5
IMO A
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Hello from the GMAT Club BumpBot!

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