The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?
Submitted by: AdministratorLet a, b, and c denote pencil, pen and eraser respectively.
Given that the cost of one pencil, two pens and four erasers is Rs.22
This can be written as,
a + 2b + 4c = 22 ..........(1)
Similarly, the cost of 5 pencils, 4 pens and 2 erasers is Rs. 32
This implies ....
5a + 4B + 2c = 32 ......... (2)
Adding (1) and (2), we get
6a + 6b + 6c = 54
We need to find the value of 3a + 3b + 3c.
Dividing by 2, we get
3a + 3b + 3c = 27.
Hence, the cost of 3 pencils, 3 pens, and 3 erasers is Rs.27
Submitted by: Administrator
Given that the cost of one pencil, two pens and four erasers is Rs.22
This can be written as,
a + 2b + 4c = 22 ..........(1)
Similarly, the cost of 5 pencils, 4 pens and 2 erasers is Rs. 32
This implies ....
5a + 4B + 2c = 32 ......... (2)
Adding (1) and (2), we get
6a + 6b + 6c = 54
We need to find the value of 3a + 3b + 3c.
Dividing by 2, we get
3a + 3b + 3c = 27.
Hence, the cost of 3 pencils, 3 pens, and 3 erasers is Rs.27
Submitted by: Administrator
Read Online Quantitative Aptitude Job Interview Questions And Answers
Top Quantitative Aptitude Questions
☺ | Two pipes A and B fill at A certain rate B is filled at 10,20,40,80,. If 1/16 of B if filled in 17 hours what time it will take to get completely filled? |
☺ | Find the fourth row, having the bit pattern as an integer in an 8-bit computer, and express the answer in its decimal value. |
☺ | One ship start his journey from a port and another ship start his journey from H at the same time, at which place they will meet? |
☺ | Which of the following set of numbers has the highest Standard deviation? |
Top Basic Job Categories
☺ | Targeted Selection Interview Questions. |
☺ | Business intelligence Interview Questions. |
☺ | Puzzles Interview Questions. |
☺ | Behavioral Interview Questions. |
☺ | Freshers Graduate Interview Questions. |