Question

An online shopping you placed two orders with a nursery. The first order was for $1$ bushes and $6$ trees, and totalled Rs. $32$. The second order was for $1$ bushes and $3$ trees, and totalled Rs. $17$. What is the cost of one tree?

• A. Rs. $3$
• B. Rs. $4$
• C. Rs. $5$
• D. Rs. $6$

Answer 1

Answer: (C)

Rs. $5$

Bushes $=x$
Trees $=y$
As per the given data form an equation,
$x+6y=32$ .....(1)
$x+3y=17$ .....(2)
Subtracting the equation (1) and (2), we get
$x+6y=32$
$x+3y=17$
___________
$3y=15$
$\Rightarrow y=\frac{15}{3}=5$
Therefore, the cost of one tree is Rs. $5$.