Two lumps of gold and silver together weigh 20 kg. One lump contains 75% gold and 31.25 gm silver per kg. Another lump contains 85% gold and 30 gm silver per kg. The total quantity of silver in two lumps is 617.5 gm. If two lumps are melted to form one, then the percentage of gold in it will be
a. 75%
b. 87%
c. 15.6%
d. 78%
Can anybody explain Fermats Little theorem?
DIRECTION for Question: Answer the question on the basis of the information given below.
A company 'XYZ' engages three small companies P,Q and R to manufacture 100 cricket bats per day. Every person in companies P,Q and R can manufacture 2, 3 and 8 cricket bats per day respectively. Companies P, Q and R charge Rs. 20, Rs. 25 and Rs. 15 respectively for every bat manufactured by them. The number of persons involved in manufacturing bats for company 'XYZ' from company P is not greater than the total number of persons involved in manufacturing bats from companies Q and R. At least one person from each of the companies P, Q and R is involved in making bats.Find the difference between the number of persons involved from company Q and R in manufacturing bats for company 'XYZ' such that the expenditure incurred by the company XYZ is minimum in manufacturing 100 bats
a. 11
b. 10
c. 9
d. 8
e. 7
There are two alloys Brass and Bronze. Brass is made using only Copper and Zinc in a certain ratio. Bronze contains 70% Copper, 14% Zinc and 16% Tin. These two alloys are mixed in the ratio x:y. The resultant mixture contains Copper, Zinc and Tin in the ratio 75:17:10. What percentage of Brass is Zinc?
http://overthecofffeee.blogspot.in/2015/07/whatsupwithgreecepart3.html#more
Next blog shall be: A Screenshot Of Digital India
PNC
In how many ways can 3 persons,each throwing a single dice ,have a total score of 11?
How many integers x with |x|
x= (4-y^3)/4
for some positive integer y?
a. 0 b. 3 c. 6 d. 4
Answer is given as 4, but I am getting only 3 integral solutions.
Find the number of integral solutions for :
x^2 - y^2 + xy = 1 , x>0 , y>0
a) 0
b) 1
c) 2
d) None of these
plz tell me where i can find problems for quant and DI ?
Had written this article on CAT D-day strategies for PG. Contains a reference to 'math junkies', which is what I think most of the guys on this thread are :-), so it might be interesting to give it a read.
http://www.pagalguy.com/articles/strategies-for-the-d-day-cat-34833310
Hey everyone
I request you to fill this survey as I am working on a project and these findings will help me in completing it.
Thanks
The survey has 9 Q. and will take one minute of yours.
LINK OF SURVEY
https://qtrial2015az1.az1.
Find the remainder when 7+7^2+7^3+--------+7^500 is divided by 19 ??
You are given two ropes which can be burn out in 1 hr each.As you have no timer but a task is given to measure 15 mins. How will you work out
in this case as there is uneven density of the rope means half of rope burn out in 2 mins??
Is 2^145+1 a prime number? How to solve these type of questions? Find unit's digit and then proceed in a certain manner? Please suggest.
how to prepare for function and graphs. this topic is very difficult for me.
A, B and C working together completed a job in 10 days. However, C only worked for the first three days when 37/100 of the job was done. Also, the work done by A in 5 days is equal to the work done by B in 4 days. How many days would be required by the fastest worker to complete the entire work?
(A) 25 days (B) 20 days (C) 30 days (D) 40 days
A and B start running in opposite directions in a circular track. They meet after 12 minutes fr the first time. The distance between them is quarter of the length of the track exactly after t minutes from start. t cannot be:
a)90 b)144 c)78 d)42
Ans : 144
In the quadrilateral ABCD, AD = DC = CB, and ADC = 100 degrees, ABC = 130 degrees. Then the measure of ACB is
0 voters
In trapezium abcd ab and cd are the parallel sides.the diagonals ac and bd intersect at x.the ratio of area of ▲axb to ▲ cxd is 25:49.
Find the ratio of the area of ▲axd and the area of trapezium abcd.
0 voters