1.Two trains starting at the same time from two stations 240 km apart and going in opposite directions cross each other at a distance of 160 km from one of the stations. What is the ratio of their speeds?
[1]2:1
[2]2:3
[3]1:3
[4]1:4
2.A person has to cover a distance of 6 km in 45 minutes. if he cover half of the distance in two-third of the total time; to cover the remaining distance in the remaining time ,his speed must be
[1]6 km/h
[2]8km/h
[3]12 km/h
[4]15km/h
3.If the area of a square flowerbed is 16 square feet, then how many feet is the perimeter of the flowerbed?
[1] 4
[2] 16
[3] 20
[4] 24
4.A borrowed Rs.4800/- from B at 9% per annum simple interest for 3 years. He then added some more money to the borrowed sum and lent it to C for the same period at 12% per annum simple interest. If A gains Rs 720/- in the whole transaction how munch did he add from his side?
[1] Rs.500/-
[2] Rs.740/-
[3] Rs.640/-
[4] Rs.800/-
5.Ramya bought clothes for Rs 7200 and spent Rs 200 on transport. Paying Rs 600, he had 330 towels made, which he sold at Rs 28 each. His profit percentage is :.
[1]15.5
[2]16.15
[3]10 .
[4]None of these
Answer
1.[1]Let speed of first train = x km/h
Let speed of second train = y km/h
According to question
120 + 600-129 = 8 .............................(1)
x y
200 + 600-200 = 25 ............................(2)
x y 3
solving (1) and (2) we get
x = 60, y = 80
Required ratio = 60: 80 = 3 :4
2.[3]Remaining distance = 3 km
Remaining time =1 * 45 = 15 min = 0.025 h
3
Required speed = 3 = 12 km/h
0.025
3.[2]: The area of a square is represented by the formula, A=s2.
Substituting 16 for A gives: 16=s2.
Solving for s shows each side length to be 4 feet.
Thus, the perimeter is equal to the product of 4 and 4 ft, or 16 ft.
4.[4]
Let his add money = Rs x
According to questipn
(4800 + x ) *12 * 3 - 4800 * 9* 3 = 720
100 100
=> 48*36 + x * 36 - 48 *27 = 270
100
=>x = 288*100 = Rs 800/-
36
5.[1]Total investment = Rs. (7200+200+ 600) Rs. 8000.
Total receipt Rs. (330 x 28) = Rs. 9240.
profit % = [1240/8000] * 100 = 15.5
[1]2:1
[2]2:3
[3]1:3
[4]1:4
2.A person has to cover a distance of 6 km in 45 minutes. if he cover half of the distance in two-third of the total time; to cover the remaining distance in the remaining time ,his speed must be
[1]6 km/h
[2]8km/h
[3]12 km/h
[4]15km/h
3.If the area of a square flowerbed is 16 square feet, then how many feet is the perimeter of the flowerbed?
[1] 4
[2] 16
[3] 20
[4] 24
4.A borrowed Rs.4800/- from B at 9% per annum simple interest for 3 years. He then added some more money to the borrowed sum and lent it to C for the same period at 12% per annum simple interest. If A gains Rs 720/- in the whole transaction how munch did he add from his side?
[1] Rs.500/-
[2] Rs.740/-
[3] Rs.640/-
[4] Rs.800/-
5.Ramya bought clothes for Rs 7200 and spent Rs 200 on transport. Paying Rs 600, he had 330 towels made, which he sold at Rs 28 each. His profit percentage is :.
[1]15.5
[2]16.15
[3]10 .
[4]None of these
Answer
1.[1]Let speed of first train = x km/h
Let speed of second train = y km/h
According to question
120 + 600-129 = 8 .............................(1)
x y
200 + 600-200 = 25 ............................(2)
x y 3
solving (1) and (2) we get
x = 60, y = 80
Required ratio = 60: 80 = 3 :4
2.[3]Remaining distance = 3 km
Remaining time =1 * 45 = 15 min = 0.025 h
3
Required speed = 3 = 12 km/h
0.025
3.[2]: The area of a square is represented by the formula, A=s2.
Substituting 16 for A gives: 16=s2.
Solving for s shows each side length to be 4 feet.
Thus, the perimeter is equal to the product of 4 and 4 ft, or 16 ft.
4.[4]
Let his add money = Rs x
According to questipn
(4800 + x ) *12 * 3 - 4800 * 9* 3 = 720
100 100
=> 48*36 + x * 36 - 48 *27 = 270
100
=>x = 288*100 = Rs 800/-
36
5.[1]Total investment = Rs. (7200+200+ 600) Rs. 8000.
Total receipt Rs. (330 x 28) = Rs. 9240.
profit % = [1240/8000] * 100 = 15.5
0 comments
Post a Comment