HARD
10th CBSE
IMPORTANT
Earn 100

If two pipes function simultaneously, a reservoir will be filled in 12 hours. One pipe fills the reservoir 10 hours faster than the other. How many hours will the second pipe take to fill the reservoir?

Important Questions on Quadratic Equations

MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.12>Q 3
Two water taps together can fill a tank in 938 hours. The tap of larger diameter takes 10 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank.
HARD
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.12>Q 4
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 separately, find the time in which each pipe would fill the tank separately.
HARD
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.12>Q 5
To fill a swimming pool two pipes are used. If the pipe of larger diameter used for 4 hours and the pipe of smaller diameter for 9 hours, only half of the pool can be filled. Find, how long it would take for each pipe to fill the pool separately, if the pipe of smaller diameter takes 10 hours more than the pipe of larger diameter to fill the pool? 
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.13>Q 1

A piece of cloth costs ₹35. If the piece were 4 m longer and each metre costs ₹ one less, the cost would remain unchanged. How long is the piece?

(Enter the length without the unit. For example, if the answer is 1 m enter 1 in the input box. )

MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.13>Q 2
Some students planned a picnic. The budget for food was ₹480. But eight of these failed to go and thus the cost of food for each member increased by ₹10. How many students attended the picnic ?
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.13>Q 3

A dealer sells an article for ₹24 and gains as much percent as the cost price of the article. If the cost price of the article is ₹k, find k?

MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.13>Q 4
Out of a group of swans, 72 times the square root of the total number are playing on the share of a pond. The two remaining ones are swimming in water. Find the total number of swans.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>EXERCISE 4.13>Q 5
If the list price of a toy is reduced by ₹2, a person can buy 2 toys more for ₹360. Find the original price of the toy. (Use the symbol ₹)