Question
The average age of 22 children and their teacher's age
are 20 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?Solution
Sum of the age of total children and teacher = 23 × 20 = 460 Sum of the age of children after excluding = 22 × 19 = 418 Teacher’s age = 460 – 418 = 42 years
19.912 - (599.98 - 96.01 ÷ 3.01) ÷ 1.98 = ? + √254
185.92 ÷ 5.98 - (4.002)2 + 114.03 of 5.03 ÷ 18.99 of 6.04 = 5.01 of 2.99 + ? ÷ 12.02
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Monthly income of P is Rs.10000 and his monthly savings is Rs.2200. If his monthly income is decreased by 30% and monthly expenditure is decreased by 20...
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.)...
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....
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12.05% of 1399. 93 + 24.95 × 15.05 - 319.04 = ?Â
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