Forget the conventional way to solve DS questions.
We will solve this DS question using the variable approach.DS question with 1 variable: Let the original condition in a DS question contain 1 variable. Now, 1 variable would generally require 1 equation for us to be able to solve for the value of the variable.
We know that each condition would usually give us an equation, and Since we need 1 equation to match the numbers of variables and equations in the original condition, the logical answer is D.
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Let’s apply the 3 steps suggested previously. [Watch lessons on our website to master these 3 steps]
Step 1 of the Variable Approach: Modifying and rechecking the original condition and the question.
We have to find the value of 'p'- where 'p' is a prime numberSecond and the third step of Variable Approach: From the original condition, we have 1variable (p).To match the number of variables with the number of equations, we need 1 equation. Since conditions (1) and (2) will provide 1 equation each, D would most likely be the answer.Let’s take look at each condition separately.Condition(1) tells us that 11 < p < 17.=> Only prime number that satisfies the given inequality is 13. Therefore, p =13
Since the answer is unique , Condition(1) is alone sufficient by CMT 2.Condition(2) tells us that p is divisible by 13.=> Prime number 'p' divisible by '13' is '13' itself. Therefore, p = 13.
Since the answer is unique , Condition(2) is alone sufficient by CMT 2. Each condition alone is sufficient.So, D is the correct answer.Answer: DSAVE TIME: By Variable Approach, when you know that value of Con(1) = Con(2), then 'D' is the correct answer. _________________