Quadratic Equations, Percentage, Profit and Loss - One Line Questions
1.
If a salary is first increased by 10% and then decreased by 10%, what is the net percentage change? —
1% decrease
2.
If x^2 - 20x + 100 = 0, find the value of x. —
10
3.
If y^2 - 17y + 60 = 0, find the value of y. —
5 or 12
4.
If x^2 - 22x + 121 = 0, find the value of x. —
11
5.
A dealer sells a product for Rs. 1200 at a loss of 20%. What was the cost price? —
1500
6.
A shopkeeper buys an article for Rs. 400 and sells it for Rs. 480. What is his profit percentage? —
20%
7.
A merchant buys goods for Rs. 800 and sells them for Rs. 960. Calculate his profit percentage. —
20%
8.
The cost price of 12 items is equal to the selling price of 10 items. What is the profit percentage? —
20%
9.
A shopkeeper marks up an item by 30% and then offers a discount of 10%. What is the net percentage change in price? —
17% increase
10.
What is 80% of 250? —
200
11.
If a price is increased by 25% and then decreased by 20%, what is the net percentage change? —
2% decrease
12.
The cost price of 10 articles is equal to the selling price of 8 articles. Find the profit percentage. —
25%
13.
The cost price of 16 items is equal to the selling price of 12 items. Find the profit percentage. —
33.33%
14.
If the selling price of 15 items is equal to the cost price of 20 items, what is the profit percentage? —
33.33%
15.
The cost price of 8 pens is equal to the selling price of 6 pens. Find the profit percentage. —
33.33%
16.
If the cost price of 10 books is equal to the selling price of 7 books, find the profit percentage. —
42.86%
17.
A shopkeeper sells an item at a 10% profit. If he had sold it for Rs. 20 more, his profit would have been 15%. Find the cost price. —
400
18.
If y^2 - 11y + 28 = 0, find the values of y. —
4 or 7
19.
If y^2 - 13y + 36 = 0, find the values of y. —
4 or 9
20.
If a number is increased by 20% and then decreased by 20%, what is the net percentage change? —
4% decrease
21.
A person sells two articles for Rs. 1000 each. On one, he gains 20%, and on the other, he loses 20%. What is the net profit or loss percentage? —
4% loss
22.
An article is sold for Rs. 540 at a profit of 20%. What was the cost price? —
450
23.
If x^2 - 11x + 30 = 0, find the value of x. —
5 or 6
24.
What is 30% of 180? —
54
25.
If x^2 - 13x + 42 = 0, find the values of x. —
6 or 7
26.
What is 35% of 200? —
70
27.
What is 45% of 160? —
72
28.
If y^2 - 14y + 49 = 0, find the value of y. —
7
29.
If x^2 - 15x + 56 = 0, find the values of x. —
7 or 8
30.
If x^2 - 16x + 63 = 0, find the values of x. —
7 or 9
31.
If y^2 - 16y + 64 = 0, find the value of y. —
8
32.
If x^2 - 17x + 72 = 0, find the values of x. —
8 or 9
33.
What is 60% of 150? —
90
34.
What is 75% of 120? —
90
35.
If y^2 - 18y + 81 = 0, find the value of y. —
9
36.
If y^2 - 19y + 90 = 0, find the values of y. —
9 or 10
37.
Compare the values of x and y. If 2x^2 - 9x + 9 = 0 and 3y^2 - 13y + 14 = 0. —
x >= y
38.
Compare the values of x and y. If x^2 - 15x + 54 = 0 and y^2 - 13y + 40 = 0. —
x > y
39.
Compare the values of x and y. If 2x^2 + 5x + 3 = 0 and 3y^2 + 7y + 4 = 0. —
x < y
40.
Compare the values of x and y. If x^2 - 14x + 48 = 0 and y^2 - 16y + 60 = 0. —
x > y
41.
Compare the values of x and y. If 2x^2 - 13x + 15 = 0 and 3y^2 - 10y + 8 = 0. —
x >= y
42.
Compare the values of x and y. If x^2 + 5x + 6 = 0 and y^2 + 7y + 12 = 0. —
x < y
43.
Compare the values of x and y. If 2x^2 - 5x + 3 = 0 and 3y^2 - 7y + 4 = 0. —
x >= y
44.
Compare the values of x and y. If x^2 - 9x + 20 = 0 and y^2 - 12y + 32 = 0. —
x > y
45.
Compare the values of x and y. If 3x^2 - 14x + 8 = 0 and 2y^2 - 13y + 20 = 0. —
x = y
46.
Compare the values of x and y. If x^2 - 10x + 21 = 0 and y^2 - 11y + 28 = 0. —
x > y
47.
Compare the values of x and y. If 2x^2 + 11x + 12 = 0 and 3y^2 + 10y + 8 = 0. —
x < y
48.
Compare the values of x and y. If x^2 - 13x + 40 = 0 and y^2 - 10y + 24 = 0. —
x > y
49.
Compare the values of x and y. If 2x^2 - 7x + 6 = 0 and 3y^2 - 5y + 2 = 0. —
x >= y
50.
Compare the values of x and y. If x^2 - 11x + 30 = 0 and y^2 - 15y + 56 = 0. —
x > y