Questions 61: A train running at a speed of 36 km/hr takes 30 sec to pass a platform and 15 seconds to pass a man walking at 6 km/hr in the opposite direction in which the train is going. Then, what will be the length of the platform ?
Answer: )
Questions 62: What is the sum(in Rs) which when divided among A, B, C, D in the proportion 2:3:5:8 Rs. 8420 less to D than what it provides to him when the proportion is 1/2:1/3:1/5:1/8 ?
Answer: b) 25020
Questions 63: The sum of 5250 is divided among A,B,C,D such that A:B = B:C = C:D = 3:4. What is the sum of A and B shares ?
Answer: d) 1890
Questions 64: A student travelled from his village to the school at the rate of 20 km/hr and walked back at the rate of 15km/hr. If the whole journey took 1 hr 24 minutes, the distance of school from his college is-
Answer: )
Questions 65: The population standard deviation of the data 12,13,13,14,15,17,18,18 is -
Answer: )
Questions 66: A is thrice as good a workman as B and they together finish a piece of work in 24 days. In how many days can B alone do the same piece of work ?
Answer: )
Questions 67: A man can row 32 km upstream and 48 km downstream in 14 hours. Also he can row 24 km upstream and 40 km downstream in 11 hours. Then, what is the speed of the man in still water ?
Answer: c) 6km/hr
Questions 68: If the area of rectangle is 1260 cm^2 and its perimeter 146 cm, what is the length of a diagonal ?
Answer: )
Questions 69: Rani purchased 5 cows and 2 hourses for Rs. 66000. When she sells the cows at 15% profit and the hourses at 10% profit , she earns a total profit of Rs.9100. What is the difference between the cost price of one cow and that of one horse ?
Answer: )
Questions 70: The marked price of an article is Rs. 300. After allowing a discount 15% on the marked price the shopkeeper makes a gain of Rs. 15. What is the gain percentage ?
Answer: )