Question
In a class of 80 students, 75% of the students passed in
Mathematics, and 85% passed in English. If 60% of the students passed in both subjects, how many students passed in exactly one subject?Solution
Students passed in mathematics = 75% of 80 = 60 Students passed in English = 85% of 80 = 68 Students passed in both subjects = 60% of 80 = 48 Students passed only in mathematics = 60 - 48 = 12 Students passed only in English = 68 – 48 = 20 Total students passed in exactly one subject = 12+20 = 32
41.66% of 888 + 66.66% of 1176 = ?2 - 4√ 16 Â
Evaluate: 320 − {18 + 4 × (21 − 9)}
Simplify: 72 ÷ 6 × 3 − 8 + 4
118 × 6 + 13 + 83 = ?
Simplify the following expression:
  (400 +175) ² - (400 – 175) ² / (400 × 175)
150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)
(75 + 0.25 × 10) × 4 = ?2 - 14
26% of 650 + 15% of 660 – 26% of 450 = ?
115% of 40 + 3 × 4 = ? × 11 – 8