Question
The number of students (boys + girls) in class 'A' is
96, and the ratio of the number of girls to boys in class 'A' is 2:1. If the average number of boys in classes 'A' and 'B' is 78 and the average number of girls in classes 'A' and 'B' is 84, then find the total number of students in class 'B'.Solution
Number of girls in class A = (2/3) × 96 = 64
Number of boys in class A = (1/3) × 96 = 32
Number of boys in class B = 78 × 2 - 32 = 156 - 32 = 124
Number of girls in class B = 84 × 2 - 64 = 168 - 64 = 104
Total number of students in class B = 124 + 104 = 228
What approximate value will replace the question mark (?) in the following?
? = 1...
(36.35 × 14.89) ÷ 8.78 = ? – 59.98
1199.98 ÷ 40.48 × 20.12 = ? × 3.16
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.)...
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.)...
85.22 of 499.98% + 299.99 ÷ 30.18 = ?
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.)...
What approximate value will come in place of question (?) in the following given expression? You are not expected to calculate the exact value.
...What approximate value will replace the question mark (?) in the following?
? =...
[(5/9 of 719.87) + (59.73% of 450.31)] ÷ (√168.79 - 3/4 of 63.94) = ?
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