Question
Out of a total of 120 students in a class, 50% are boys
and the rest are girls. Out of the total number of students who appeared in the class test, 35% failed while out of the total number of boys who appeared in the test, 45% passed the test. Find the number of girls who passed the test given that all the students in the class appeared for the test.Solution
ATQ Number of boys in the class = 120 × 0.50 = 60 Number of girls in the class = 120 – 60 = 60 Number of students who failed in the test = 120 × 0.35 = 42 Number of students who passed the test = 120 – 42 = 78 Number of boys who passed the test = 60 × 0.45 = 27 Number of girls who passed the test = 78 – 27 = 51
118.95 – 24.10 + (91.90 ÷ 22.89 × 12.14) = ?
What approximate value should come in the place of (?) in the following questions?
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713.92 ÷ 14.14 * 69.8 = ? * 20.74 ÷ 8.9(√1157 + 10.15% of 159.89) × 4.85 + 150.25 = ? × 19.67
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(239.88 ÷ 7.86) + (107.78 ÷ 6.06) of 3.18 – (12.12 × 5.3) = ?
√49 + 6.66% of 1725 + 22² = ?² - √361Â
Determine the simplified value of the given mathematical expression.
10562.41 - 7893.78 + 9647.35 + ? = 19500.24
√1024.21 × √624.89 ÷ 4.98 + 11.99 × 4.01 = ?
Solve the given equation for ?. Find the approximate value.
(3/5 of 399.78 + 7/9 of 360.15) ÷ (√63.94 + 25% of 383.94) = ?
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