CAT QUANT PERCENTAGE 4

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Question 1:

A student wrote 3 hours 3 minutes as 3.3 hours. By what % of an hour did he go wrong?

Question 2:

In a class 40% of the students are girls. If 50% of the boys and 60% of the girls pass the final exam, then find the passing percentage of the class.

Question 3:

A can of juice was 80% full. 80 % of the contents were emptied into a glass and 81 ml juice was added to the can. Then the can became full to the brim. What is the capacity of the brim?

Question 4:

Recently a band was to perform in India. However, there was widespread criticism of the high cost of its tickets so the organizers decided to offer the following discounts:

The tickets were originally priced at Rs 25,000/ticket. Any additional tickets (above the lot sizes) were billed at the original price. A college group wants to buy 13 tickets, what is the minimum average ticket price they would need to pay (approx.)?

Question 5:

Hari prepares a budget to visit London. However, he spends 12% of his budget on the first 10% days of his travel when he stays in the city. He knows that he has to spend another 35% of days in city itself, after which he would travel to the country side. What should be the minimum decrease in spending in country side as a percentage of his spending in city so as to complete his travel on the initial budget itself?

Question 6:

In an ice-cream factory, 30% of total Vanilla-flavored ice-cream produced is mixed with 40% of total Banana-flavored ice-cream produced, in a ratio of 1:1. Find the overall percentage of ice-cream produced which is mixed with each other. (Ice-creams of only these 2 flavors are produced in the factory)

Question 7:

In a field, two workers are planting trees. After sometime, a third worker is added and the number of trees planted becomes half as large. How many trees can the second worker plant as a percentage of the number of trees planted by first worker if it is given that efficiency of second worker is 1/3 of 1st and 3rd worker combined.

Question 8:

Grandpa is writing a book. Every morning he starts writing vigorously and fills a lot of pages. But post lunch he goes through that entire he has written that far (right from day one) and deletes one-fifth of it. He does not write anything more that day. At the end of the day the content of his book is still 20% more than that at the end of the previous day. How much percent new content does Grandpa write in the morning?

Question 9:

In an examination, Calvin scored 40% marks and failed by 60 marks, while Susie scored 60% marks, which is 40 marks more than the passing marks. What is the percentage of passing marks?

Question 10:

An agent offers a commission of 10% on sales over Rs 1000 to a single customer and a commission of 5% for on any other sales. A salesman sold goods worth Rs 1500 to each of 5 customers and goods worth Rs 800 to each of 4 others. How much % commission will he get on the whole?

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