Para Jumbles: Master Competitive Exam Skills

Para Jumbles

Q. A fruit seller has a ratio of apples to oranges as 3:2. If he has 30 apples, how many oranges does he have?

Solution

Let the number of oranges be x. The ratio gives us 30/x = 3/2. Cross-multiplying gives 3x = 60, so x = 20.

Correct Answer: A — 20

Q. A loan of $2000 is taken at a rate of 6% per annum. What will be the compound interest after 2 years?

Solution

Compound Interest = P(1 + r/n)^(nt) - P = 2000(1 + 0.06)^2 - 2000 = 2000(1.1236) - 2000 = 252.

Correct Answer: B — $252

Q. A person bought a watch for $300 and sold it for $360. What is the profit percentage?

Solution

Profit = Selling Price - Cost Price = 360 - 300 = 60. Profit Percentage = (60/300) * 100 = 20%.

Correct Answer: B — 20%

Q. A shopkeeper bought an article for $200 and sold it for $250. What is the percentage profit?

Solution

Profit = Selling Price - Cost Price = 250 - 200 = 50. Percentage Profit = (Profit/Cost Price) * 100 = (50/200) * 100 = 25%.

Correct Answer: B — 25%

Q. A train travels 180 km at a speed of 60 km/h. How long does it take to complete the journey?

Solution

Time = Distance / Speed = 180 km / 60 km/h = 3 hours.

Correct Answer: B — 3 hours

Q. If a person earns $5000 and spends $3500, what percentage of his income does he save?

Solution

Savings = Income - Expenditure = 5000 - 3500 = 1500. Savings Percentage = (1500/5000) * 100 = 30%.

Correct Answer: C — 40%

Q. If a person invests $1000 at an interest rate of 5% per annum, what will be the total amount after 3 years using simple interest?

Solution

Simple Interest = Principal * Rate * Time = 1000 * 0.05 * 3 = 150. Total Amount = Principal + Interest = 1000 + 150 = 1150.

Correct Answer: A — $1150

Q. If the ratio of boys to girls in a class is 4:5 and there are 36 boys, how many girls are there?

Solution

Let the number of girls be x. The ratio gives us 36/x = 4/5. Cross-multiplying gives 4x = 180, so x = 45.

Correct Answer: A — 45

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