Physical Sciences Topics
Doctoral & research level — Physical Sciences
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Mathematical Methods
Quantum Mechanics
Electromagnetic Theory
Statistical Mechanics
Experimental Techniques
quiz Questions
Q21
Evaluate: (51 + 30) × 9.
729
738
13770
90
Explanation
(51+30)×9 = 81×9 = 729.
Q22
Evaluate: (69 + 94) × 3.
489
19458
492
166
Explanation
(69+94)×3 = 163×3 = 489.
Q23
Evaluate: (43 + 57) × 7.
700
707
17157
107
Explanation
(43+57)×7 = 100×7 = 700.
Q24
Evaluate: (36 + 36) × 9.
657
648
11664
81
Explanation
(36+36)×9 = 72×9 = 648.
Q25
Evaluate: (38 + 65) × 6.
14820
624
109
618
Explanation
(38+65)×6 = 103×6 = 618.
Q26
Evaluate: (25 + 23) × 8.
384
4600
392
56
Explanation
(25+23)×8 = 48×8 = 384.
Q27
Evaluate: (32 + 13) × 2.
90
92
47
832
Explanation
(32+13)×2 = 45×2 = 90.
Q28
Evaluate: (71 + 68) × 6.
834
145
840
28968
Explanation
(71+68)×6 = 139×6 = 834.
Q29
Evaluate: (57 + 40) × 2.
196
4560
99
194
Explanation
(57+40)×2 = 97×2 = 194.
Q30
Evaluate: (76 + 55) × 5.
655
20900
660
136
Explanation
(76+55)×5 = 131×5 = 655.