Question
The average age of three children is 20 years. If their
ages are in the ratio 5:6:9. Find the age of the youngest child.Solution
Total age of three children = 20 × 3 = 60 years Let their ages be 5x, 6x and 9x respectively. => 5x + 6x + 9x = 60 => 20x = 60 => x = 3 Therefore the age of youngest child = 5 × 3 = 15 years
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
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.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
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.)...
