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Total number of students = 15 + 13 + 10 + 14 + 12 + 6 ⇒ Total number of students = 70 Students in class interval 160-170 = 10 + 14 = 24 Percentage of students in class interval 160-170 = (24/Total students) × 100 ⇒ Percentage of students in class interval 160-170 = (24/70) × 100 = 34.28 ∴ The percentage of students whose height is in the class interval of 160-170 is 34% (correct to the nearest integer)
31 40 51 64 79 ?
63, 74, ?, 129, 173, 228
Choose the missing term?
B, D, F, I, L, P, ?
What will come in the place of questions (?) mark in the following questions.
40, 25, 30, 50, 105, ?
16, 16, 32, 96, ?, 1920
25 54 ? 228 460 924
...12 48 192 ? 3072 12288
...5 6 15 40 89 170 ?
...5, 23, 18, 36, 31, ?
16, 15, 24, -1, 48, ?
