Question
Five years from now, the age of Arjun will be 28 years.
Six years from now, the ratio of ages of Arjun and Varun will be 4:5 respectively. After how many years from now will Arjun’s age become 80% of Varun’s age?Solution
ATQ,
Present age of Arjun = 28 - 5 = 23 years Age of Varun six years hence = (5/4) × (23 + 6) = (5/4) × 29 = 36.25 years Present age of Varun = 36.25 - 6 = 30.25 years Let the required time be 'T' years. So, (23 + T) = 0.8 × (30.25 + T) Or, 23 + T = 24.2 + 0.8T Or, 0.2T = 1.2 Or, T = 6
14, 86, 150, ?, 254, 294
196, 167, 144, ?, 108, 95
7.5% of 820.68 - 95% of 945.06 + 12.8% of 1050= ?
What will come in place of the question mark (?) in the following series?
92, 153, 220, ?, 364, 443
71, 79, 88, 152, ?, 393
625, 125, 375, 75, 225, 45, ?
What will come in place of the question mark (?) in the following series?
7, 19, 55, 163, 487, ?
45, ?, 84, 114, 151, 195
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?Find the missing number in the given number series.
1, 2, 3, 6, 11, 20, ?
