Q41. A person covers half of his journey at 15 km/hr and remaining half covers 10 km/hr. What is his average speed for the whole journey?

• 10 km/hr
• 12 km/hr
• 14 km/hr
• 15 km/hr

Q42. If 4/5 of an estate be worth Rs. 16800, then what is the value of 3/7 of the estate?

• 10000
• 9000
• 12000
• 15000

Q43. A student has to secure 40% marks in a paper to pass. He gets 40 and fails by 40 marks. Find the maximum marks of the paper.

• 100
• 150
• 200
• 250

Q44. In an examination, a student was asked for to find 3/14 of a certain number. By mistake, he found 3/4 of it. His answer was 150 more than the correct answer. The given number is:

• 280
• 300
• 320
• 350

Q45. A, B, and C working together can finish a piece of work in 8 days. A alone can do it in 20 days and B alone can do it in 24 days. In how many days will C alone can do the same work?

• 28 days
• 35 days
• 30 days
• 32 days

Q46. The average of 10 numbers is calculated as 25. It is discovered later on that while calculating the average, one number, namely 36 was wrongly read as 56. The correct average is:

• 25
• 24
• 20
• 23

Q47. If selling price of 10 articles is the same as cost price 12 articles, find the gain percentage.

• 15%
• 20%
• 25%
• 30%

Q48. The ratio between two numbers is 3:4. If their L.C.M is 600, then the numbers are:

• 130, 140
• 120, 160
• 60, 80
• 150, 200

Q49. A man sold two commodities for Rs.99 each. On one he gains 10% and the other he loses 10%. Find his gain or loss percent in the whole transaction.

• 10% loss
• 10% gain
• 1% loss
• 1% gain

Q50. A 150 metres long train takes 20 seconds to cross a 450 metres long platform. The speed of the train in kilometres per minute is

• 1.8
• 3.8
• 2.8
• 1.5