Entrance Exams
Govt. Exams
Combined rate = 1/8. P's rate = 1/12. Q's rate = 1/8 - 1/12 = 1/24. Q takes 24 days.
If 1/3 work = 5 days, then full work = 5 × 3 = 15 days.
Let B's income = 100, A's = 125. B's is less by 25/125 × 100 = 20%.
Let CP = 100. MP = 140. SP = 140 × 0.9 = 126. Profit% = (126-100)/100 × 100 = 26%.
A = P(1 + R/100)^T. 3600 = P(1.1)^3 = P(1.331). P = 3600/1.331 ≈ Rs. 2703.67.
Let value = 100. After 25% increase = 125. After 20% decrease = 125 × 0.8 = 100. Net = 0%. Recalculate: 125 × 0.8 = 100. No wait: 125 × 0.8 = 100. Check: 5% increase option seems wrong. Answer is no change
Let CP = 100. MP = 150. SP = 150 × 0.8 = 120. Profit% = 20%
A = P + SI = P + (P × 10 × 2)/100 = P × 1.2. 2420 = P × 1.2. P = 2000
Rate A = 1/20, Rate B = 1/30. Combined = 5/60. In 10 hours = 50/60. Remaining = 10/60. B's time = (10/60)/(1/30) = 5 hours
If B = 100, A = 80. Increase needed = 20. Percentage = (20/80) × 100 = 25%