Aptitude and Logical Reasoning Assessment

Problem Statement

Lilly visits a stationery store to purchase pens, notebooks, and markers. The items are sold at a fixed rate per piece. Lilly buys 6 pens, 23 notebooks, and 7 markers. If she had bought 6 more notebooks instead of 7 markers, she could have reduced her expenditure by 23%. However, if she had bought 6 more notebooks instead of 6 pens, she could have reduced her expenditure by 33%. By what percentage would her expenditure have reduced if she had only bought 36 notebooks? 44% 38% 56% 62% At present, the ratio of the age of Aman to Mahesh is 5 : 7. Mahesh is how many years older than Aman? (I) 7 years before, the ratio of the age of Aman to Ajay was 3 : 4. (II) After 7 years, the ratio of the age of Aman to Dinesh will become 7 : 8. Mark (A) if statement I alone is sufficient, (B) if either alone is sufficient, (C) if both together are sufficient, or (D) if neither/insufficient. (A) (B) (C) (D) If A = {2, 5, 7, 9, 13, 19}. A subset containing three elements from A has to be selected, such t