engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 Quantitative Aptitude Algebra Linear Equation in 2 Variable
74 books and 106 pens together cost Rs. 1910 while 106 books and 74 pens together cost Rs. 2230. The cost of a book and a pen is:
1
Rs. 30
2
Rs. 37
3
Rs. 25
4
Rs. 23