A battery dealer incurs an expense of Rs. 150 for producing every battery. He also incurs an additional expenditure of Rs. 30,000, which is independent of the number of batteries produced. If he is able to sell a battery during the season, he sells it for Rs. 250. If he fails to do so, he has to sell each battery for Rs. 100.If he produces 1500 batteries, what is the number of batteries that he must sell during the season in order to break-even, given that he is able to sell all the batteries produced?
A stockist wants to make some profit by selling rice. He contemplates about various methods. Which of the following would maximize his profit?
1. Sell rice at 10% profit.
2. Use 900 g of weight instead of 1 kg.
3. Mix 10% impurities in rice and selling rice at cost price.
4. Increase the price by 5% and reduce weights by 5%.
OPtion
1) 1
2) 2
3) 3
4) 4
5) 1 or 2
6) 2 or 3
7) 1 or 3
8) 1 or 4
9) 2 or 4
10) None of these
Solution
We will solve this question by taking all the cases one by one.
In the first case it is given that the profit is 10%.
For second case, let the CP of 1 kg of rice be Rs. 100
Then CP of 900 g of rice= (100/1000 )x 900 = Rs. 90
Hence, profit % in Case II= [{(100-90)/90}x100] = 11.11%
For case III, If he adds 10% impurity then his CP for 1 kg
= {(100/1100) x 100} = Rs. 90.90
Hence, profit % in Case III = [{(100-90.90)/90.90} x 100] = 10.01%
and in the last case, If he reduces weight by 5%
Then cost price of 950 g = {(100/1000) x 950} = Rs. 95 and SP = Rs. 105
Hence, profit % in Case IV = {(105 – 95 )/95} X 100 = 10.52%
Ms. Shakuntla asked his students to find the sum of all pages of their maths book. Pappu gave the answer as 1098. Ms. Shakuntla told him that he has not added one page.
Find the page number which the Pappu forgot to add?
How many numbers can be formed from 1, 2, 3, 4, 5 (without repetition), when the digit at the unit’s place must be greater than that in the ten’s place?
1 at units place 0 numbers
2 at units 1 at units place 3!
3 at units 1 at units place 3!
3 at units 2 at units place 3!
4 at units 1 at units place 3!
4 at units 2 at units place 3!
4 at units 3 at units place 3!
5 at units 1 at units place 3!
5 at units 2 at units place 3!
5 at units 3 at units place 3!
5 at units 4 at units place 3!
Gabbar fires 5 shots to Mogambo's 3 but Gabbar kills only once in 3 shots while Mogambo kills once in 2 shots. When Mogambo has missed 27 times, Gabbar has killed :
Mr. Kulbhushan spends 35% of his income on food, 25% on transportation and 80% of the remaining on house rent. What percent of his income he is left with ?
Let the total pages are 'n'. We have
1 + 2 + 3 + .........+n = 1977
⇒ n(n+1)/2 = 1977
n (n+1) = 3954
The square nearest to 3954 is 3969.This is the square of 63. Hence, we will take n= 63.
Therefore, sum of the pages= n(n+1)/2 = 63*64/2= 2016
Missing number = 2016-1977 =39.
Now, we have to think of 2 consecutive numbers whose sum is 39.
x+x+1=39 ⇒ ×= 19, x+1= 20