gmat data sufficiency strategies
TRANSCRIPT
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TIPS FOR DATA SUFFICIENCY
PROBABLE ANSWER : YES OR NO
“WHAT CAN THE PROBABLE ANSWERS BE ??” Try to ask this question to the given TARGET question.
1. Is the Product of x & y Greater than 59 ?
PROBABLE ANSWER : 0,1,2,3,4,5
2. How many ewes (female sheep) in a flock of 50 sheep are black if there are 45 male sheep?
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CHECK if the ANSWER would be :1. YES/NO types (Greater Than/Less Than type).2. A NUMERICAL VALUE3. A LOGICAL CONCLUSION
1. If the average size of 3 accounts is $1 million, is the smallest account less than $500,000?
NUMERICAL VALUE
2. Is the length of a side of equilateral triangle E less than the length of a side of square F?
YES/NO
3. Plants can be sickALTERNATIVES WILL BE LOGICAL
PREMISE/ CONCLUSION
EXAMPLES
TIPS FOR DATA SUFFICIENCY
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ASK “WHAT DATA IS REQUIRED TO DERIVE AN ANSWER?”
EXAMPLE
Find the Time required by the train to cross the pole. TARGET QUESTN.
USEFUL INFORMATION REQUIRED : a. Length of the Train. b. Speed of the Train.
Time Required = Length of the Train / Speed of the Train
TIPS FOR DATA SUFFICIENCY
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ASK “WHAT DATA IS REQUIRED TO DERIVE AN ANSWER?”
EXAMPLE
Find the Volume of the Cylinder. TARGET QUESTN.
USEFUL INFORMATION REQUIRED : a. Radius of the Cylinder. b. Height of the Cylinder.
Volume of the Cylinder =π x R2 x H
TIPS FOR DATA SUFFICIENCY
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RECAP
ASK “WHAT CAN THE PROBABLE ANSWERS BE ??”
“CHECK if the ANSWER would be”– YES/NO– NUMERICAL VALUE– LOGICAL DEDUCTION
What DATA is required to get an ANSWER.
Summarise the Question.
Try rephrasing the Question.
For every statement ask the Question : “Is this data relevant to the target Question??”
Also, try guessing smartly.