Page 80 - MergedFile
P. 80

Test Name        Numerical Ability [OIR]                          Total Questions       15




        Test Question    Language:­ ENGLISH

              1. By how many degrees a minute­hand rotates in 45 minutes?


              a. 45°
              b. 90°
              c. 180°
              d. 270°
              Solution. Minute­hand covers 360° in 1 hour that is one complete rotation. or



              Hence in 45 minutes it will rotate by 45× 6= 270°
              Answer. d

              2. Degree covered by hour­ hand in 12 hours is

              a. 45°
              b. 90°
              c. 180°

              d. 360°
              Solution. In 12 hour an hour­hand rotates by 360° i.e. one complete revolution.
              Hence in one hour it does



              Therefore in 12 hours it will cover, 30°× 12=360°
              Answer. d

              3. What is the angle covered by a hour­hand between 8 a.m and 5 p.m


              a. 45
              b. 95
              c. 270
              d. 360

              Solution. In one hour, hour­ hand covers 30°, hence in 9 hours it will cover 30° × 9 = 270°
              Answer. c

              4. By what degree has the hour­hand rotated between 1 : 40 pm and 5 p.m.

              a. 100

              b. 110
   75   76   77   78   79   80   81   82   83   84   85