Maths MCQs for AD (ASF)

Q31. In an election, a candidate got 55% votes and won by 900 votes. Total votes cast were

• A) 4500
• B) 5000
• C) 9000
• D) None of these

Q32. The average of 5 numbers is 36. If one number is excluded, the average becomes 30. The excluded number is

• A) 56
• B) 60
• C) 66
• D) None of these

Q33. Average marks of 30 students is 52. One student’s marks were read as 48 instead of 84. Correct average is

• A) 52.8
• B) 53.2
• C) 53.5
• D) None of these

Q34. In a 60 litre mixture, milk and water are in ratio 2 : 1. How much water should be added to make ratio 1 : 2?

• A) 40 litres
• B) 60 litres
• C) 80 litres
• D) None of these

Q35. A can complete work in 12 days and B in 18 days. Together they complete the work in

• A) 6 days
• B) 7 days
• C) 7.2 days
• D) None of these

Q36. A train 150m long passes a pole in 15 seconds. Time required to pass a 300m platform is

• A) 25 sec
• B) 30 sec
• C) 45 sec
• D) None of these

Q37. Perimeter of a rectangle is 80m. If length is 25m, the area is

• A) 375 m²
• B) 350 m²
• C) 300 m²
• D) None of these

Q38. Greatest number that divides 2400, 3600 and 4800 exactly is

• A) 400
• B) 600
• C) 1200
• D) None of these

Q39. Simple interest on Rs 8000 at 6% per annum for 2.5 years is

• A) Rs 1100
• B) Rs 1200
• C) Rs 1500
• D) None of these

Q40. A sum of money doubles itself in 8 years at simple interest. Rate of interest per annum is

• A) 10%
• B) 12%
• C) 12.5%
• D) None of these