Question
The average cost price of 25 pens (having equal cost
price) decreased by Rs.2, when one of the pen is replaced by a new pen having cost price of Rs.40. Find the cost price of the pen that was replaced.Solution
Let the cost price of each pen be Rs.x So, cost price of 25 pens = Rs.25x According to the question, => (25x – x + 40)/25 = x – 2 => 24x + 40 = 25x – 50 => x = 90 Therefore, the cost price of the pen that was replaced is = Rs.90
In a computer, what does ‘booting’ mean?
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
324 * 6 * 114 *...
Which box is the heaviest?
A __________ is the component which routes data between the computer's buses & Devices, so that all the components which make up the computer can commun...
How many pairs of letters are there in the word "ENTERTAINER" which has as many letters between them (both forward and backward) in the word as in the E...
What is the birth year of one who likes cream?
How many such pairs are there in the word ‘ KLING ’ each of which has many letters between them in the word as they have between them in the English...
In the word ‘SCIENCE’ all consonants are written as their preceding letter and all vowels are written as their following letters. Now all letters ar...
‘X’ and ‘Y’ invested Rs. 6000 and Rs. 7500 respectively for 10 months and 8 months respectively in a business. X gave away 60% of his profit to ...
- 12 years ago, the ratio of the ages of Meena and Riya was 7:11. If Riya’s current age is 40% more than Meena’s current age, then find the sum of their ...
Relevant for Exams:
