Hey friends please help me with this question - Starting with 1 i write all natural numbers and formed a huge number. Find the 19282th digit from the left hand side of such number formed
1-9=9 digits 10-99=99*2=180 digits and so on...you just need to calculate in this way
Hi Puys,
Can u please help me formulate the Venn Diagram for the data mentioned below,
In a survey among all the students in the IIM's, it was found that 48% prefferred coffee, 54 % liked tea and 64% smoked. Of that total, 28% liked coffee and tea, 32% smoked and drank tea and 30% smoked and drank coffee. Only 6% did none of these. The total number of students is 2000.
for your question i have attached the diagram C=coffee T=tea S=smoke h=12 as they are 6% of 200 a+b+e+f=96 b+e=56 b+e+c+d=108 e+d+f+g=128 e+d=64 e+f=60 and so on solve the equations you will get the answer
p.s.-not able to upload attachment due to some problem in the server
A tank of 425 litres capacity has been filled with water through two pipes,the first pipe having been opened five hours longer than the second.If the first pipe were open as long as the second,and the second pipe was open as long as the first pipe was open,then the first pipe would deliver half the amount of water delivered by the second pipe;if the two pipes were open simultaneously,the tank would be filled up in 17 hours. How long was the second pipe open????? A-10 hrs B-12 hrs C-15 hrs D-18 hrs plz explain in detail so dat I can fully understand.....
This one is from the BLOCK 2 Pre assessment test on Averages (pg. no. 102) problem 19-20.
Production pattern for a number of units is given per day. Hiring cost of a truck is Rs. 1000 and storage cost is Rs. 5 per cubic feet (Please go through the tabular data).
Now in Q.19 we are supposed to find out on which day should the trucks be hired to minimise the cost. I could solve all the other Questions from the test which were quite easy but I have no clue how to go about 19 & 20.
Can any one please solve this problem in detail??? Thanks in advance!!!
Circles are drawn with four vertices as the centre and radius equal to the side of a square. If the square is formed by joining the mid points of another square of side 2root(6), find the common area to all the four circles. Geometry Arun Sharma LOD 2 Q 43
Two squares, each of side lengths 1 unit and having their centres at O, are rotated with respect to each other to generate octagon ABCDEFGH, as shown in the figure above. If AB = 43/99, find the area of the octagon.
Consider a right circular cone of base radius 4 cm and height 10 cm. A cylinder is to be placed inside the cone with one of the flat surfaces resting on the base of the cone. Find the largest possible total surface area (in sq cm) of the cylinder.
Two squares, each of side lengths 1 unit and having their centres at O, are rotated with respect to each other to generate octagon ABCDEFGH, as shown in the figure above. If AB = 43/99, find the area of the octagon.
as shown in the figure above????
lifesucks22 Says
Consider a right circular cone of base radius 4 cm and height 10 cm. A cylinder is to be placed inside the cone with one of the flat surfaces resting on the base of the cone. Find the largest possible total surface area (in sq cm) of the cylinder.
SOL:
Let the radius and the height of the cylinder be r and h respectively.
so using similarity of triangles
10-h)/10 = 2r/8 So, 2h=20-5r ----------------(1) Now, TSA = 2pie*r(r+h)
by putting the values
we will get, 20pie*r^3 - 3pie*r^2 = 0
for maximum value r=10/3 and h=5/3 (use differentiation)
so maximum TSA = 2pie*10/3*(10/3+5/3) = 100*PIE/3 😃
Somebody please help to find the last digit in the expression
36472^123! * 34767^76!
Thanks in advance!;)
If you think of it 123! factorial is divisible by 4 since 123! has a 4 in it. Now the digit at the unit's place of 36472 which is 2 has a power cycle of 2,4,8,6 and since the expression is of the form 36472^4k, the answer to this expression is bound to have 6 in its unit's place.
As for 34767, the same logic goes. Power cycle of 7 is 7,9,3,1. Also 76! being divisible by 4, the expression 34767^76! is of the form 34767^4k and so the digit at the unit's place of the answer to this expression will be 1.
Hence, the final answer will be 6*1 which is 6 i.e. 6 will be the digit at the unit's place.
A bus left point X for point Y. Two hours later a car left point X for Y and arrived at Y at the same time as the bus.If the car and the bus left simultaneously from the opposite ends X and Y towards each other,they would meet 1.33 hours after the start. How much time did it take the bus to travel from X to Y? Plz explain in detail. TIA
Brass is an alloy of copper and zinc. Bronze is an alloy containing 80% copper, 4% zinc, and 16% tin. A fused mass of brass and bronze is found to contain 74% of copper, 16 % of zinc, and 10% of tin. The ratio of copper to zinc in Brass is : ( pg number 246 q no 10 arun sharma) friends please give me the detailed solution for this q
@rohitnkali said: if A and B are two numbers and its GM is 20% less than the AM then find the ratio of the numbers.pls do reply me with the solution.thanks
Suppose the two numbers are a and b,
then, (ab)^1/2 = 4/5 * (a + b)/2
=>ab = 4/25 * (a^2 + b^2 + 2ab)
=>17ab = 4*(a^2 + b^2)
=>the expression would be satisfied @ a= 4 and b =1
@rohitnkali said:if A and B are two numbers and its GM is 20% less than the AM then find the ratio of the numbers.pls do reply me with the solution.thanks
