MEDIUM
10th ICSE
IMPORTANT
Earn 100

An aeroplane flying with a wind of 30 km/h takes 40 minutes less to fly 3600 km, than what it would have taken to fly against the same wind. Find the plane's speed of flying in still air.

50% studentsanswered this correctly

Important Questions on Quadratic Equations in One Variable

MEDIUM
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 31
A school bus transported an excursion party to a picnic spot 150 km away. While returning, it was raining and the bus had to reduce its speed by 5 km/h, and it took one hour longer to make the return trip. Find the time taken to return in hours.
MEDIUM
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 32
A boat can cover 10 km up the stream and 5 km down the stream in 6 hours. If the speed of the stream is 1.5 km/h, find the speed of the boat in still water.
MEDIUM
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 33
Two pipes running together can fill a tank in 1119 minutes. If one pipe takes 5 minutes more than the other to fill the tank, find the time in which each pipe would fill the tank.
MEDIUM
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 34
₹480 is divided equally among 'x' children. If the number of children were 20 more, then each would have got₹12 less. Find 'x'.
MEDIUM
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 34
₹7500 were divided equally among a certain number of children. Had there been 20 less children, each would have received ₹100 more. Find the original number of children.
MEDIUM
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 35
2x articles cost ₹5x+54 and x+2 similar articles cost ₹10x-4; find x.
EASY
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 36
A trader buys x articles for a total cost of ₹600. Write down the cost of one article in terms of x. If the cost per article were₹5 more, the number of articles that can be bought for ₹600 would be four less.
HARD
10th ICSE
IMPORTANT
Understanding ICSE Mathematics Class 10>Chapter 5 - Quadratic Equations in One Variable>Exercise 5.5>Q 37
A shopkeeper purchases a certain number of books for ₹960. If the cost per book was ₹8 less the number of books that could be purchased for ₹960, would be 4 more. Write an equation, taking the original cost of each book to be ₹x and solve it to find the original cost of the books.