Quiz 1A

Question 1

Time: 00:00:00

Traders A and B buy two goods for Rs. 1000 and Rs. 2000 respectively. Trader A marks his goods up by x%, while trader B marks his goods up by 2x% and offers a discount of x%. If both make the same non-zero profit, find x.

25%

12.5%

37%

40%

Question 2

Time: 00:00:00

The price of a Maruti car rises by 30% while the sales of the car come down by 20%. What is the percentage change in total revenue.

-4

-2

+4

+2

Question 3

Time: 00:00:00

Class B has 50% more students than class A. Number of girls in class A is equal to the number of boys in class B. The percentage of girls is the same in both classes. What percentage of the student group are boys?

33.33

40

25

60

Question 4

Time: 00:00:00

Jack Ma buys 80 articles, each at Rs. 40 and sells n of them at a profit of n% and the remaining at a profit of (100 – n)%. What is the minimum profit Jack Ma could have made on this trade?

2160

1420

1580

2210

Question 5

Time: 00:00:00

A merchant can buy goods at the rate of Rs. 20 per good. The particular good is part of an overall collection and the value is linked to the number of items that are already on the market. So, the merchant sells the first good for Rs. 2, second one for Rs. 4, third for Rs. 6…and so on. If he wants to make an overall profit of at least 40%, what is the minimum number of goods he should sell?

24

18

27

32

Question 6

Time: 00:00:00

Ram sells onions in the streets of Chandni Chowk. Due to the recent shortfall in the supply of onions, he doubled his selling price despite the cost price remaining the same for him due to a fixed price contract. He realizes that his profit has tripled. Find the original profit percent.

200/3

100

120

105*1/3

Question 7

Time: 00:00:00

Two friends A and B simultaneously start running around a circular track . They run in the same direction. A travels at 6 m/s and B runs at b m/s. If they cross each other at exactly two points on the circular track and b is a natural number less than 30, how many values can b take?

3

4

7

5

Question 8

Time: 00:00:00

Three friends A, B and C decide to run around a circular track. They start at the same time and run in the same direction. A is the quickest and when A finishes a lap, it is seen that C is as much behind B as B is behind A. When A completes 3 laps, C is the exact same position on the circular track as B was when A finished 1 lap. Find the ratio of the speeds of A, B and C?

5:4:2

4:3:2

5:4:3

3:2:1

Question 9

Time: 00:00:00

Two friends A and B leave City P and City Q simultaneously and travel towards Q and P at constant speeds. They meet at a point in between the two cities and then proceed to their respective destinations in 54 minutes and 24 minutes respectively. How long did B take to cover the entire journey between City Q and City P?

60

45

55

25

Question 10

Time: 00:00:00

Consider a class of 40 students whose average weight is 40 kgs. m new students join this class whose average weight is n kgs. If it is known that m + n = 50, what is the maximum possible average weight of the class now?

40.18

40.56

40.67

40.49

Question 11

Time: 00:00:00

In a class of 5 students, average weight of the 4 lightest students is 40 kgs, Average weight of the 4 heaviest students is 45 kgs. What is the difference between the maximum and minimum possible average weight overall?

2.8

3.2

3

4

Question 12

Time: 00:00:00

A student gets an aggregate of 60% marks in five subjects in the ratio 10 : 9 : 8 : 7 : 6. If the passing marks are 50% of the maximum marks and each subject has the same maximum marks, in how many subjects did he pass the examination?

2

3

4

5

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