NIELIT 2017 DEC Scientific Assistant A - Section A: 32

1,606 views

Irvin sold a book at a profit of $12\%$. If Irvin had sold it for $\text{₹}18$ more, then $18\%$ would have been gained. Find the cost price.

1. $\text{₹}600$
2. $\text{₹}300$
3. $\text{₹}400$
4. $\text{₹}200$

Option B. ₹300

If 6% is ₹18 then 100% = $\frac{18 * 100}{6}$ = ₹300

$18\%-12\% \implies \text{₹}18$

$6\% \implies \text{₹}18$

$1\% \implies \text{₹}3$

Now, $100\% \implies \text{₹}300.$

So, the correct answer is $(B).$

Related questions

1
868 views
After the price of apples reduced, it enabled a person to purchase $3$ apples for $₹1$ instead of $₹1.25$. What is the percentage reduction in price?$20$$25$$30$$33.3... 0 votes 2 answers 2 1,257 views In how many different ways can the letters of the word ‘MATHEMATICS’ be arranged so that the vowels always come together?10080$$4989600$$120960$None of the options
Rishi got two halls in his house painted. It cost him $₹6,000$ and $₹6,100$ respectively to paint the $4$ walls of his $2$ square halls, of the same height. If the le...
Ali is thrice as good as workman as Birju and therefore is able to finish a job in $60$ days less than Birju. If both Ali and Birju, work together, they can do it in:$20$...
A college cricket team with $11$ players consists of $4$ batsman, $3$ all-rounders, $3$ bowlers and $1$ wicket keeper. $3$ players are selected randomly. Find the probabi...