Question
In a classroom there are 15 boys and 12 girls. Average
age of each boy and each girl is 23 years and 17 years respectively. The sum of ages of all the boys, girls and a teacher whose age is ‘x’ years is 580 years. Find the value of ‘x’.Solution
Sum of ages of all boys = 15 x 23 = 345 Sum of ages of all girls = 12 x 17 = 204 So, 345 + 204 + x = 580 => x = 31
More Age Questions
- Identify x such that x% of 540 plus {1080 ÷ x of 9} × 6 gives 162
360 × 9 ÷ 3 + 120 + 900 ÷ 5 = ?
2350 – 4830 + 9570 + 3350 – 1720 = ?
12.5% of 384 - 16.66% of 66 = √16 + √? + 22
What will come in the place of question mark (?) in the given expression?
? = 60% of 48% of (20 × 350) + 180
What will come in the place of question mark (?) in the given expression?
(555 + 385 - 535) ÷ 15 X ? = 36 X 30
Find the simplified value of the given expression:
What is the value of 7/9-11/12+12/16-1/8?
48 ÷ 6 × √25 + 13 × 8 = ?
What will come in the place of question mark (?) in the given expression?
(308 – 154) ÷ 11 = ? ÷ 15
