UP Police SI · Numerical & Mental Ability
Flow and process diagrams interpretation.
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Q1 · Logical Diagrams · EASY
A process diagram shows the flow of raw material through a factory. Raw material enters at Stage 1, is processed at Stage 2, inspected at Stage 3, and packed at Stage 4. If the inspection at Stage 3 fails, the material returns to Stage 2. If 100 units enter Stage 1, and 20 units fail inspection once before passing, how many times in total do units pass through Stage 2?
Q2 · Logical Diagrams · MEDIUM
A flow diagram shows decision-making for loan approval. Applications first go through Credit Check. If credit score is above 700, they move to Income Verification. If below 700, they are rejected. After Income Verification, if monthly income exceeds Rs 40,000, the loan is approved; otherwise rejected. Out of 200 applications, 120 have credit score above 700, and among these, 80 have monthly income above Rs 40,000. How many applications are approved?
Q3 · Logical Diagrams · HARD
A production flow diagram shows: Machine A produces 50 units per hour and sends them to Machine B. Machine B processes them and 10% are defective and sent to Rework Unit C. Machine C can handle 8 units per hour. After 2 hours of operation, how many units are waiting at Rework Unit C if it operates continuously?
Q4 · Logical Diagrams · MEDIUM
A logical diagram represents the steps in processing customer orders. Orders are received (Step 1), checked for stock availability (Step 2). If stock is available, orders move to Billing (Step 3) and then Dispatch (Step 4). If stock is unavailable, orders are placed in Backorder (Step 5). In one day, 150 orders are received. 30 orders face stock unavailability and go to Backorder. How many orders reach Dispatch by end of the day?
Q5 · Logical Diagrams · MEDIUM
Which Venn diagram correctly represents the relationship between: Teachers, Women, and Mothers?