Question
5 years ago, A was 1/3 of B’s age. If the ratio of
their present ages is 2:5, what will be the sum of their present ages?Solution
Let the present age of A and B be 2x and 5x respectively. According to question, => 3(2x – 5) = (5x – 5) => 6x – 15 = 5x – 5 => x = 10 Present age of A = 2x = 20 yrs And present age of B = 5x = 50 yrs The sum of their present ages = 20 + 50 = 70 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.)...
