Question
At the time of their marriage, the ages of Karan and
Divya were in the ratio 13:12. Two years before their marriage, Karan’s age was 10% more than Divya’s. Seven years after their marriage, what will be the ratio of their ages?Solution
ATQ, Let their ages at marriage be 13y and 12y. 2 years before marriage → (13y − 2) and (12y − 2). Given: (13y − 2) = 1.10 × (12y − 2) ⇒ 13y − 2 = 13.2y − 2.2 ⇒ 0.2y = 0.2 ⇒ y = 0.2 ÷ 0.2 = 1 7 years after marriage: Karan = 13y + 7 = 13 + 7 = 20 Divya = 12y + 7 = 12 + 7 = 19 Required ratio = 20 : 19
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.)...
