Option C is the correct answer.
Lets understand the information and what we need to find in order to answer the question.
So the question starts by telling us that a department store received a shipment in which their are two types of boxes: Fragile and Non-Fragile, and from the question we came to know that there are two categories of product in these boxes: Electronic and Non-Electronic. And in the end it asks us whether more than half of the Fragile boxes contains Electronics product or not.
Now lets see the statements and check whether we can answer the question using those statements or not.
Statement 1: "
Two-thirds of the boxes in the shipment are fragile". This statement tells us that 2/3rd of the boxes in the shipment are Fragile which would mean that if their are 3 boxes in the shipment 2 out of those will be Fragile, similarly if the shipment contains 6 boxes then 4 of them will be Fragile and so on. But it does not give us any information regarding the boxes that contains Electronic products which means that it can be 1/5, 2/3, 1/4 and so on. So this statement on its own is Not Sufficient to answer the question.Statement 2: "
Four-fifths of the boxes in the shipment contain electronics". This statement tells us that 4/5th of the boxes in the shipment contains Electronic product which would mean that if their are 5 boxes in the shipment 4 out of those will contain Electronic products, similarly if the shipment contains 10 boxes then 8 of them will contain Electronic product and so on. But it does not give us any information regarding the boxes that contains Fragile products which means that it can be 1/5, 2/3, 1/4 and so on. So this statement on its own is Not Sufficient to answer the question. As we have checked that both the statements on their own are Not Sufficient to answer the question. So now lets try by combining both the statements.After combining both the statements we we now know that 2/3rd boxes contain Fragile items and 4/5th of the boxes contains Electronic products. Now lets assume the total number of boxes to be 15 which will give us our answer in integer form and it will make the calculation much more easier.So as per our assumption Total Boxes = 15Fragile boxes = 15*(2/3) = 10Non-Fragile Boxes = 15-10 = 5Boxes with Electronic products = 15*(4/5) = 12
Boxes without Electronic products = 15-12 = 3
From here to see the minimum number of boxes that will be both Fragile and Electronic category we need to fit maximum boxes into Non-Fragile category which will be '5' that will leave '7' boxes for Fragile which will be more than half. But lets check for few other numbers to confirm our answer.
Example:So lets assumption Total Boxes = 30Fragile boxes = 30*(2/3) = 20Non-Fragile Boxes = 30-20 = 10Boxes with Electronic products = 30*(4/5) = 24
Boxes without Electronic products = 30-24 = 6
Now lets assumption Total Boxes = 45Fragile boxes = 45*(2/3) = 30Non-Fragile Boxes = 45-30 = 15Boxes with Electronic products = 45*(4/5) = 36
Boxes without Electronic products = 45-36 = 9
Now lets assumption one last value of Total Boxes = 450Fragile boxes = 450*(2/3) = 300Non-Fragile Boxes = 450-300 = 150Boxes with Electronic products = 450*(4/5) = 360
Boxes without Electronic products = 450-360 = 90
From all these cases we can easily conclude that more than more than half of the
fragile boxes contain electronics. So Option C is our answer.Bunuel
A department store received a shipment of two types of boxes on Monday: fragile and non-fragile. Did more than half of the fragile boxes contain electronics?
(1) Two-thirds of the boxes in the shipment are fragile.
(2) Four-fifths of the boxes in the shipment contain electronics.