Question
The average age of 15 children and their teacher's age
are 12 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age?Solution
Sum of the age of total children = 16 × 12 = 192 Sum of the age of children after excluding teacher = 15 × 10 = 150 Teacher’s age = 192 – 150 = 42 years
Solve the given equation for ?. Find the approximate value.
[(49.88% of 320.11) × (34.85% of 460.24)] ÷ √783.94 = ?
(24.78 × 11.67) + (7199.67 ÷ 14.99) = ? × 12.65
‘A’ and ‘B’ can build a wall in 8 days and 12 days, respectively. If ‘A’ started building the wall alone but after 4 days he was replaced by...
17.06 2 + √36.08 – (4.04/2.99) × 3.02 × 4.92 = ? × 4.99
What approximate value will replace the question mark (?) in the following?
24.99...
- 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.)
√? + √626 × 13.998 - 6.02 × 2.97 = 345.995
19.89% of 449.67 + 14.67% of 299.89 - 9.89% of 99.79 = ?
What will come in the place of question mark (?) in the given expression?
?2 = {40% of (552 – 352 )} – 44
