In these questions, two equations mabered I and II are given. You have to solve both equations and m

English

Gujarati

Hindi

7.Profit and Loss

medium

In these questions, two equations mabered $I$ and $II$ are given. You have to solve both the equations and mark the appropriate option.

$I.$ $2 x^{2}+19 x+45=0$

$II.$ $2 y^{2}+11 y+12=0$

A

If $x>y$

B

If $x \geq y$

C

If $x < y$

D

If relationship between $x$ and $y$ cannot be determined

Solution

$I.$ $2 x^{2}+19 x+45=0$

$x=-5, x=-45$

$II.$ $2 y^{2}+11 y+12=0$

$y=-4, y=-1.5$

$y>x$

Standard 13

Quantitative Aptitude

Share

Similar Questions

A person bought a horse and a carriage for $Rs.\,20000.$ Later, he sold the horse at $20 \%$ profit and the carriage at $10 \%$ loss. Thus, he gained $2 \%$ in the whole transaction. The cost price of the horse was (in $Rs.$)

medium

A wholesaler had $200$ dozens of mangoes. He sold some of these mangoes at $20 \%$ profit and the rest at $10 \%$ profit, so that he made $13 \%$ profit on selling all the mangoes. How many mangoes (in dozens) did he sells at $20 \%$ profit?

medium

Instead of dividing $391$ cookies among $3$ children $A$, $B,C$ in the ratio $\frac{1}{5}: \frac{1}{4}: \frac{1}{8},$ it was divided in to the ratio $5: 4: 8 .$ Who gains the most and how many?

medium

A man bought $500$ metres of electronic wire at $50$ paise per metre. He sold $50 \%$ of it at a profit of $5 \%$ At what percent should he sell the remainder so as to gain $10 \%$ on the whole transaction?

medium

A shopkeeper bought $30\, Kg$ of wheat at the rate of $Rs.\,45$ per $Kg.$ He sold $40\%$ of the total quantity at the rate of $Rs.\,50$ per $Kg.$ Approximately, at what price per $Kg$ should he sell the remaining quantity to make $25$ percent overall profit? (in $Rs.$)

hard