Question
[R] is how much less than the total number of masks sold
on Wednesday? Answer the following questions based on the information given below: A shopkeeper sold two types of masks i.e. surgical and N95. Number of surgical masks sold on Monday is [P] which is 60 more than the number of N95 masks sold on same day. Number of surgical masks sold on Tuesday is [Q] which is 20% less than that on Monday and number of N95 masks sold on Tuesday is [R]. Total masks sold on Tuesday is 28% less than that on Monday while total masks sold on Tuesday is 432. Number of N95 masks sold on Wednesday is [S] which is 15% more than number of surgical masks sold on same day. Ratio of total masks sold on Monday to Wednesday is 60:43.Solution
Total number of masks sold on Monday = 432/0.72 = 600 Number of N95 masks sold on Monday = (600 – 60)/2 = 270 Number of surgical masks sold on Monday [P] = (600 – 270) = 330 Total number of masks sold on Tuesday = 432 Number of surgical masks sold on Tuesday [Q] = (80/100) × 330 = 264 Number of N95 masks sold on Tuesday [R] = 432 – 264 = 168 Total number of masks sold on Wednesday = (600/60) × 43 = 430 Number of surgical masks sold on Wednesday = (20/43) × 43 = 200 Number of N95 masks sold on Wednesday [S] = 430 - 200 = 230 
Required difference = 430 – 168 = 262
12, 19, 32, ?, 76, 107
8, 12, 16, 22, ?, 64
864, 432, 144, ? , 7.2, 1.2
Find the missing number, in the given number series.
42, 52, 72, 112, 192, ?
72, 82, 62, 102, 22, ?
58, 67, ?, 76, 40, 85
1029, 1030, 1039, 1064, ?, 1194
What will be the value of 'R + S' in the series: 'Q', 'R', 60, 'S', 240, 'P + 6Q'
8, 27, 53, ?, 161, 285
200 ? 96 38.4 7.68 0
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