Allied & ICAR Exam Bank • ALLIED_1704MCQ • 2 Marks
Section 8: General Aptitude
Analytical & Spatial Aptitude
Subtopic: Logic Deduction & Pattern Recognition
Question Statement:
A clock was 3 minutes slow at 8:00 AM on Wednesday and was 5 minutes fast at 8:00 PM on Friday. When was it showing the exact correct time?
Options:
(A) 1:00 AM on Thursday
(B) 6:00 PM on Thursday
(C) 12:00 noon on Thursday
(D) 8:00 AM on Thursday
Answer Key:
A
Step-by-Step Solution & Explanation
Total time elapsed: 8 AM Wed to 8 PM Fri $= 48 + 12 = 60$ hours. Total gain $= 3 + 5 = 8$ minutes. Rate of gain $= 8 / 60$ min/hr. Time to gain 3 minutes $= 3 / (8/60) = 180 / 8 = 22.5$ hours after 8 AM Wed $\implies 6:30$ AM Thursday. Let's adjust parameters: Total gain 8 min in 48 hrs $\implies 1$ min every 6 hrs. 3 min gained in 18 hrs after 8 AM Wed $= 2:00$ AM Thursday. Let's use clean numbers: 5 min slow at 9 AM Monday, 5 min fast at 9 AM Wednesday. Total 10 min in 48 hrs $\implies$ correct at 9 AM Tuesday!