Data Analysis Comparisons Mock Tests

A bar chart shows the number of books read by five students in 2025: Student A: 12 books Student B: 8 books Student C: 15 books Student D: 10 books Student E: 6 books What is the average number of books read per student?

A company tracks daily production output for a week: Monday: 150, Tuesday: 162, Wednesday: 148, Thursday: 175, Friday: 160, Saturday: 130, Sunday: 0 The average daily output for the five weekdays (Mon–Fri) is approximately what percent greater than the average daily output for the entire week (including weekend)?

A table shows the profit margins of 4 companies: Alpha (12%), Beta (16%), Gamma (14%), Delta (10%). How much higher is Beta margin than the average of all four?

A company's monthly advertising spend and corresponding revenue (in lakhs of rupees): Jan: Spend ₹2L, Revenue ₹10L Feb: Spend ₹3L, Revenue ₹14L Mar: Spend ₹2.5L, Revenue ₹12L Apr: Spend ₹4L, Revenue ₹18L May: Spend ₹3.5L, Revenue ₹16L What is the average return on ad spend (ROAS = revenue / ad spend) across all five months?

A company tracks the daily number of website visits and conversions over 5 days: Monday: 1,000 visits, 20 conversions Tuesday: 1,200 visits, 30 conversions Wednesday: 800 visits, 12 conversions Thursday: 1,500 visits, 35 conversions Friday: 1,000 visits, 24 conversions On which day was the conversion rate closest to 2.5%?

A table shows the test scores of two classes: Class A (avg 78, 30 students), Class B (avg 82, 25 students). How many more total points did Class A earn compared to Class B?

A company tracks daily widget sales over five days: Monday: 120 units Tuesday: 95 units Wednesday: 140 units Thursday: 110 units Friday: 155 units The company sells each widget for $8. On which day did the company earn the most revenue from widget sales?

A logistics company recorded the delivery times (in minutes) for 6 deliveries on Monday: 45, 52, 38, 61, 47, 55 The delivery time for one additional delivery on Monday was recorded, and the new mean delivery time became 50 minutes. What was the delivery time for the 7th delivery?