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Question 456241: Suppose a ball is thrown straight up at a speed of 50 feet per second. The time in seconds that it takes for the ball to hit the ground can be found by solving the equation 5 + 50t - 16t^2 = 0. Approximately how long does it take for the ball to hit the ground?
Click here to see answer by nerdybill(7384)  |
Question 456324: Have to solve a Quadratic equation by Factoring as well as by using a quadratic formula. The quadratic formula has to show all steps and a final solution. Then l have to solve it by the graphing method. The equation is x2-x-90. Hope you can help me
Click here to see answer by solver91311(24713)  |
Question 456603: 1. If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?
a) 10% (b) 25% (c) 45% (d) 60%
2. Instead of multiplying a number by 7, the number is divided by 7. What is the percentage of error obtained ?
a) 18% (b) 32% (c) 48% (d) 98%
3. A work has been done by the two person in 24 min. one of them can do this work a lonely in 40 min. how much time required to do the same work for the second person?
(a) 16 Min (b) 64 Min (c) 60 Min (d) 34 Min
4. The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?
(a) Rs.40 (b) Rs.32 (c) Rs.25 (d) Rs.27
5. 1, 3, 4, 8, 15, 27, __
(a) 60
(b) 59
(c) 43
(d) 50
6. 2, 5, 9, 19, 37,__
(a) 64
(b) 55
(c) 75
(d) 40
7. R,M,__,F,D,__
(a) I, C
(b) A, Q
(c) L, N
(d) B, Q
8. DRIVER = 7, PEDESTRIAN = 11, ACCIDENT = ?
(a) 9 (b) 8 (c) 6 (d) 18
1. Father’s age is 5 times his son’s age. 4 years back the father was 9 times older than son. Find the fathers’ present age.
(a) 45 Years (b) 40 Years (c) 50 Years (d) 35 Years
2. A shopkeeper bought a watch for Rs.400 and sold it for Rs.500.What is his profit percentage?
(a) 100% (b) 20% (c) 25% (d) 10%
3. A number 54 is divided into two parts, so that 10 times the first and 22 times second are together equal to 780. The difference of the parts is:
(a) 12 (b) 14 (c) 20 (d) 34
4. In simple interest what sum amounts of Rs.1120/- in 4 years and Rs.1200/- in 5 years ?
(a) Rs. 500 (b) Rs. 600 (c) Rs. 800 (d) Rs. 900
11. The ratio of number of boys and girls in a school of 432 students is 5:4.How many new girls should join the school so that the ratio 1:1?
(a) 16 (b) 48 (c) 60 (d) 240
12. 2 men or 3 women can do a piece of work in 10 days. In how many days can 4 men and 3 women do the work together?
(a) 3 1/3 (b) 2 2/3 (c) 3 (d) 2 1/3
13. Rs. 150 is divided so that A gets Rs. 30 more than B and B gets twice as much as C. What amount does C get?
(a) Rs. 20 (b) Rs. 25 (c) Rs. 30 (d) Rs. 24
14. The average of 60 results is 40 and the average of another 40 results is 60.What is the average of all the result?
(a) 100 (b) 45 (c) 48 (d) 20
15. 2,7,17,32,52,77,?
(a) 97 (b) 91 (c) 101 d) 107
16. If ‘DEAR’ is coded as 7 and ‘BEARS’ as 9, what should be the code for ‘WAX’?
(a) 10 (b) 12 (c) 16 (d) None of these
17. 1, 3, 4, 8, 15, 27, __
(a) 60
(b) 59
(c) 43
(d) 50
19. A:B = 7:5, B:C = 3:4. Now If C is 30, what is A?
a) 42 (b) 47.5 (c) 40 (d) 31.5
20. If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?
(a) 13 km/hr
(b) 26 km/hr
(c) 34 km/hr
(d) none of these
21. Of three numbers whose average is 60. the first is 1/4th of the sum of the others. What is the first number?
(a) 30 (b) 36 (c) 42 (d) 15
22. A and B are good at hockey and Volleyball. C and A are good at hockey and Baseball. D and B are good at Cricket and Volleyball C,D, AND E are good at Football and Baseball. Study the above given information and answer the question below. Who of the following is good at four games? (a) C (b) D (c) A (d) B
23. Who of the following is good at Cricket, Baseball and Volleyball?
(a) E (b) D (c) C (d) B
24. Who of the following is good at Cricket, Hockey and Volleyball?
(a) A (b) B (c) C (d) D
25. Who of the following is good at largest numbers of games?
(a) A (b) B (c) C (d) D
29. If cloud is called white, white is called rain, rain is called green, green is called air, air is called blue and blue is called water, where do birds fly in?
a) air
b) cloud
c) blue
d) white
30. The average age of a family of 6 members is 25 years. The average age of the family after a 45 years-old member leaves is
a) 20 years
b) 21 years
c) 22 years
d) 23 years
31. At what rate of interest per annum, a sum of Rs. 800 will become Rs. 1200 in 10 years?
a) 10%
b) 15%
c) 5%
d) 20%
2. The ratio of number of boys and girls in a school of 432 students is 5:4.How many new girls should join the school so that the ratio 1:1?
(a) 16 (b) 48 (c) 60 (d) 240
3. 2 men or 3 women can do a piece of work in 10 days. In how many days can 4 men and 3 women do the work together?
(a) 3 1/3 (b) 2 2/3 (c) 3 (d) 2 1/3
4. Rs. 150 is divided so that A gets Rs. 30 more than B and B gets twice as much as C. What amount does C get?
(a) Rs. 20 (b) Rs. 25 (c) Rs. 30 (d) Rs. 24
5. The average of 60 results is 40 and the average of another 40 results is 60.What is the average of all the result?
(a) 100 (b) 45 (c) 48 (d) 20
6. 2,7,17,32,52,77,?
(a) 97 (b) 91 (c) 101 d) 107
7. If ‘DEAR’ is coded as 7 and ‘BEARS’ as 9, what should be the code for ‘WAX’?
(a) 10 (b) 12 (c) 16 (d) None of these
8. 1, 3, 4, 8, 15, 27, __
(a) 60
(b) 59
(c) 43
Click here to see answer by edjones(8007)  |
Question 457190: There are a total 108 offensive players on a football team. There are twice as many runners than passing players. Write two equations and then slove for both equation. How many runners are there and how many passing people are there?
Click here to see answer by stanbon(75887) |
Question 457218: Little Joseph has just bought a brand new 5 foot one piece fiberglass fishing pole at a local sporting goods store. He goes to get on the bus to go home and the bus driver tells him he may not bring anything on the bus longer than 4 feet on the bus. Joseph is sitting on the bench crying when his older brother Michael comes out of the store, asks him what is the matter, and tells him not to worry that he would fix it. When the bus comes, Joseph gets on with his fishing pole and the bus driver welcomes him. The pole was not bent or broken. What did they do?
Click here to see answer by josmiceli(19441)  |
Question 457447: Two cars leave the same place at the same time traveling in opposite directions. One car is traveling at a rate of 30 mph while the other is traveling at a rate of 45 mph. How long will it take until the cars are 250 miles apart?
Click here to see answer by rfer(16322) |
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