If 12 men or 15 women can do a piece of work in 28 days, how long will it take for 8 men and 20 women to complete the same work?

In a row of children, if A is 11th from the left and B is 18th from the right, and they both interchange their positions, A becomes 26th from the left. What is the total number of children in the row?

A train passes a platform of 240 meters in length in 24 seconds at a speed of 72 km/hr. What is the length of the train?

The sum of two numbers is 84 and their difference is 36. What is the product of these two numbers?

A train takes 1 minute less to travel a distance of 24 km at a speed of 48 km/hr than it takes to travel a distance of 16 km at a speed of 32 km/hr. What is the time taken to travel a distance of 10 km at a speed of 40 km/hr?

In a class of 40 students, the ratio of boys to girls is 3:2. If 5 girls leave the class, what is the new ratio of boys to girls?

If the selling price of an article is increased by 20%, what is the percentage decrease in the quantity of the article that can be bought for the same amount of money?

In a code language, FORTUNE is written as ETVOQMD. How will you write LUCKY in that language?

If the radius of a circle is increased by 50%, what is the percentage increase in the area of the circle?

If A is 50% more efficient than B, how much time will A take to complete a job which is 60% more than the job B can do in 12 days?

If 4 men or 7 women or 9 boys can do a piece of work in 24 days, how many days will 2 men, 3 women, and 4 boys take to do the same work?

If the sum of two numbers is 20 and their product is 96, what is the difference between the two numbers?

In a certain code language, ‘TABLE’ is written as ‘CZXOV’. How is ‘CHAIR’ written in that code language?

If a:b = 3:4 and b:c = 2:5, what is the value of (a+b+c):c?

A train travels from station A to station B at a speed of 80 km/h and returns to station A at a speed of 60 km/h. What is the average speed of the train for the whole journey?

In a certain code language, ‘RANGE’ is written as ‘YDQJH’. How is ‘APPLE’ written in that code language?

If R = 18, RAT = 60, what is the value of ART?

If 25% of x is equal to 20% of y and y = 60, what is the value of x?

A trader marks his goods 25% above cost price but allows a discount of 20% on the marked price. What is his profit percentage?

If A + B = 20 and AB = 96, what is the value of A² + B²?

If 20% of a number is 10, what is 30% of the same number?

In a group of 200 people, 80% are employed, and 40% of the employed people are women. How many women are unemployed?

A shopkeeper marks his goods up by 40% and then gives a discount of 20%. What is his net profit percentage?

What is the next number in the series: 8, 11, 17, 28, 45, 73, ?

A train runs at a speed of 60 km/hour for the first 20 km and then at a speed of 40 km/hour for the next 30 km. What is the average speed of the train for the whole journey?