# NIELIT 2022 Feb Scientist D - Section C: 1

400 views

A bought an article and spent $\text{Rs. 110}$ on its repair. He then sold it to $\text{B}$ at $20 \%$ profit, $\text{B}$ sold it to $\text{C}$ at a loss of $10 \%$ and $\text{C}$ sold it for $\text{Rs. 1188}$ at a profit of $10 \%$. What is the amount for which $\text{A}$ bought the article?

1. $\text{Rs. 850}$
2. $\text{Rs. 950}$
3. $\text{Rs. 930}$
4. $\text{Rs. 890}$

let x = amount for  he bought + amount spent on repair

x--->[x+(20%of x)=1.2x]--->[1.2x-(10% of 1.2x)=1.08x]--->[1.08x+(10%of1.08x)]

Given in question 1.08x+(10% of 1.08x)=1188

from this x=1000 you get

Required answer = 1000 – 110 = 890.

In a survey of $100$ students, it was found that $50$ used the college library, $40$ had their own library and $30$ borrowed books of these, $20$ used both the college li...
The distance between two stations $\text{A}$ and $\text{B}$ is $450 \; \text{km}$. A train starts from $\text{A}$ and moves towards $\text{B}$ at an average speed of $15 ... 0 votes 0 answers 3 145 views The rates of simple interest in two banks$\text{A}$and$\text{B}$are in the ratio$5: 4$. A person wants to deposit his total savings in two banks in such a way that h... 0 votes 0 answers 4 197 views A clock gaining$3$min every hour was synchronised at midnight with a clock losing$2$min every hour. How many minutes the clock (losing time) will be behind at eleven ... 0 votes 0 answers 5 245 views In a village the current birth rate per thousand is$55$whereas corresponding death rate is$34\$ per thousand. The net growth rate in terms of population increase will b...