thanks,this link is betterwww.pdfunlock.com/Carpenter Rajesh has a circular piece of plywoodof diameter 30 feet. He has cut out two disks ofdiameter 20 feet and 10 feet. What is thediameter of the largest disk that can be cut outfrom the remaining portion of the plywood piece?(2 marks)(1) > 8.00 feet and ≤ 8.20 feet(2) > 8.21 feet and ≤ 8.40 feet(3) > 8.41 feet and ≤ 8.60 feet(4) > 8.61 feet and ≤ 8.80 feet(5) > 8.81 feet and ≤ 9.00 feet
how did u deduce that it will be 550 just from finding out the ratios?? did u solved it all or any shortcut??
from ratios
suppose l=5 and b=3 total area =5*3=15........hence SP=15*1000(1+.1)=16500 then first big square area =3*3=9.....hence SP=9*1200=10800 second big square area =2*2=4.......hence SP=4*1150=4600 remaining rectangle area =1*2 =2......remaining SP=1100.....therefore SP per unit area=1100/2=550
sabka 550 hai toh yehi hoga! Yo!Ram prepares solutions of alcohol in wateraccording to customers €™ needs. This morningRam has prepared 27 litres of a 12% alcoholsolution and kept it ready in a 27 litre deliverycontainer to be shipped to the customer. Justbefore delivery, he finds out that the customerhad asked for 27 litres of 21% alcohol solution.To prepare what the customer wants, Ramreplaces a portion of 12% solution by 39%solution. How many litres of 12% solution arereplaced? (1 mark)(1) 5 (2) 9 (3) 10 (4) 12 (5) 15
sabka 550 hai toh yehi hoga! Yo!Ram prepares solutions of alcohol in wateraccording to customers €™ needs. This morningRam has prepared 27 litres of a 12% alcoholsolution and kept it ready in a 27 litre deliverycontainer to be shipped to the customer. Justbefore delivery, he finds out that the customerhad asked for 27 litres of 21% alcohol solution.To prepare what the customer wants, Ramreplaces a portion of 12% solution by 39%solution. How many litres of 12% solution arereplaced? (1 mark)(1) 5 (2) 9 (3) 10 (4) 12 (5) 15
sabka 550 hai toh yehi hoga! Yo!Ram prepares solutions of alcohol in wateraccording to customers €™ needs. This morningRam has prepared 27 litres of a 12% alcoholsolution and kept it ready in a 27 litre deliverycontainer to be shipped to the customer. Justbefore delivery, he finds out that the customerhad asked for 27 litres of 21% alcohol solution.To prepare what the customer wants, Ramreplaces a portion of 12% solution by 39%solution. How many litres of 12% solution arereplaced? (1 mark)(1) 5 (2) 9 (3) 10 (4) 12 (5) 15
9...
from the required 21, original is 12 (ie 9 away) and new is 39 (18 away) since 9 : 18 = 1 : 2 they have to be mixed as 2 : 1 i.e. in 27 litres, 18 of 12% should be retained and mixed with 9 of 39% regards scrabbler
A property dealer bought a rectangular piece ofland at 1000/sq. ft. The length of the plot is lessthan twice its breadth. Due to its size, there wereno buyers for the full plot. Hence he decided tosell it in smaller sized pieces as given below.The largest square from one end was sold at1200/sq. ft. From the remaining rectangle thelargest square was sold at 1150/sq. ft.Due to crash in the property prices, the dealerfound it difficult to make profit from the sale ofthe remaining part of the land. If the ratio of theperimeter of the remaining land to the perimeterof the original land is 3 : 8, at what price (in ) theremaining part of the land is to be sold such thatthe dealer makes an overall profit of 10%? (2marks)(1) 500/sq. ft. (2) 550/sq. ft.(3) 600/sq. ft. (4) 650/sq. ft.(5) None of the above.
let length = y and breadth = x
2x + 2y = 8
by 2nd statement we will get , x = 1.5
so , y = 2.5
CP of whole land = 3750
money received till now = 1.5^2 * 1200 + 1^2 * 1150 = 3850
sabka 550 hai toh yehi hoga! Yo!Ram prepares solutions of alcohol in wateraccording to customers €™ needs. This morningRam has prepared 27 litres of a 12% alcoholsolution and kept it ready in a 27 litre deliverycontainer to be shipped to the customer. Justbefore delivery, he finds out that the customerhad asked for 27 litres of 21% alcohol solution.To prepare what the customer wants, Ramreplaces a portion of 12% solution by 39%solution. How many litres of 12% solution arereplaced? (1 mark)(1) 5 (2) 9 (3) 10 (4) 12 (5) 15
C(16, 6) or C(16, 10) is correct for the marks question (as explained by@Angadbir and @scrabbler )Let S be the set of proper three digit positive integers less than 1000. What is the minimum number of integers that must be chosen from S to ensure that there are at least two integers which have at least one digit in common?
111 , 222 , 333 ..... 999 = 9 numbers
any other number will satisfy condition hence 10 numbers
thanks,this link is betterwww.pdfunlock.com/Carpenter Rajesh has a circular piece of plywoodof diameter 30 feet. He has cut out two disks ofdiameter 20 feet and 10 feet. What is thediameter of the largest disk that can be cut outfrom the remaining portion of the plywood piece?(2 marks)(1) > 8.00 feet and ≤ 8.20 feet(2) > 8.21 feet and ≤ 8.40 feet(3) > 8.41 feet and ≤ 8.60 feet(4) > 8.61 feet and ≤ 8.80 feet(5) > 8.81 feet and ≤ 9.00 feet
A medical practitioner has created different potencies of a commonly used medicine by dissolving tables in water and using the resultant solution. Potency 1 solution: When 1 tablet is dissolved in 50 ml, the entire 50 ml is equivalent to one dose. Potency 2 solution: When 2 tablets are dissolved in 50 ml, the entire 50 ml of this solution is equivalent to 2 doses, … and so on. This way he can give fractions of tablets based on the intensity of infection and the age of the patient. For particular patient, he administers 10 ml of potency 1, 15 ml of potency 2 and 30 ml of potency 4. The dosage administered to the patient is equivalent to (1 mark) (1) > 2 and ≤ 3 tablets (2) > 3 and ≤ 3.25 tablets (3) > 3.25 and ≤ 3.5 tablets (4) > 3.5 and ≤ 3.75 tablets (5) > 3.75 and ≤ 4 tablets
A medical practitioner has created differentpotencies of a commonly used medicine bydissolving tables in water and using the resultantsolution.Potency 1 solution: When 1 tablet is dissolved in 50ml, the entire 50 ml is equivalent to one dose.Potency 2 solution: When 2 tablets are dissolved in50 ml, the entire 50 ml of this solution is equivalentto 2 doses,… and so on.This way he can give fractions of tablets based onthe intensity of infection and the age of thepatient.For particular patient, he administers 10 ml ofpotency 1, 15 ml of potency 2 and 30 ml ofpotency 4. The dosage administered to thepatient is equivalent to (1 mark)(1) > 2 and ≤ 3 tablets(2) > 3 and ≤ 3.25 tablets(3) > 3.25 and ≤ 3.5 tablets(4) > 3.5 and ≤ 3.75 tablets(5) > 3.75 and ≤ 4 tablets
City Bus Corporation runs two buses from terminus A to terminus B, each bus making 5 round trips in a day. There are no stops in between. These buses ply back and forth on the same route at different but uniform speeds. Each morning the buses start at 7 AM from the respective terminuses. They meet for the first time at a distance of 7 km from terminus A. Their next meeting is at a distance of 4 km from terminus B, while travelling in opposite directions. Assuming that the time taken by the buses at the terminuses is negligibly small, and the cost of running a bus is 20 per km, find the daily cost of running the buses (in ). (1 mark) (1) 3200 (2) 4000 (3) 6400 (4) 6800 (5) None of the above
A medical practitioner has created differentpotencies of a commonly used medicine bydissolving tables in water and using the resultantsolution.Potency 1 solution: When 1 tablet is dissolved in 50ml, the entire 50 ml is equivalent to one dose.Potency 2 solution: When 2 tablets are dissolved in50 ml, the entire 50 ml of this solution is equivalentto 2 doses,… and so on.This way he can give fractions of tablets based onthe intensity of infection and the age of thepatient.For particular patient, he administers 10 ml ofpotency 1, 15 ml of potency 2 and 30 ml ofpotency 4. The dosage administered to thepatient is equivalent to (1 mark)(1) > 2 and ≤ 3 tablets(2) > 3 and ≤ 3.25 tablets(3) > 3.25 and ≤ 3.5 tablets(4) > 3.5 and ≤ 3.75 tablets(5) > 3.75 and ≤ 4 table