A drink contains 12% alcohol. I added 20ml of water to reduce the concentration to 10%. What was the quantity in my drink initially?
Approach?
can anyone suggest which free mock cat series is the best??...
If the geometric mean of the first n terms of the geometric progression 4, 8, 16, ..... is 1024, then find the value of n.
There are 98 given points on a circle. Amar, Akbar and Anthony start
playing a game by drawing a chord, one by one, by joining any two of the
points which have not yet been joined together. The game ends when all
such points have been joined exhaustively. The winner is the one who
draws the last chord. If Anthony starts the game, followed by Akbar, and
then Amar, then who will win?
I think the correct option choice is wrong, a CL MOCK question
A sold some CDs to B at the rate of 4 CDs for the cost of 3. After a few days B sold the same at the rate of 3 CDs for the price he had paid for 4. % loss incurred by A on the whole.
how do we solve equations of the type 12(P+Q)=20(Q+R)=15(P+R) to get the values of P,Q and R?
Of 128 boxes of oranges, each box contains at least 120 and at most 144 oranges. The number of boxes containing the same number of oranges is at least
(1) 5 (2) 103 (3) 6 (4) Cannot be determined
[x] + [y]+[z]= 10 how many way are there?
A book was sold for a sum and there was a loss of 20%. Had it been sold for Rs.12 more there would have been gain of 30%. Find profit if book was sold for 4.8Rs more than what it was solved for.
A. No profit no loss
B.20% C.10% D.25%
If 3x + 5y ≤ 15 and 5x + 2y ≤ 10, where both x and y are non-negative real numbers, what is the maximum possible value of (3x + 10y)?
a 15
b 510/19
c 30
d 585/19
What should be the approach ? Here it is perfectly fine to say co-efficient of Y is 10 as compared to 3 of X .... so we maximize Y which is 3 . Making the answer 30 , which is the OA. But what if we have something like 100y+x
5 digit multiples of 6 are formed by 0 , 2, 4 , 5 , 6 , 8 exactly once.
what is the remainder if the sum of all such numbers is divisible by 1000?
options-
144
828
112
408
answer is 828
please explain the approach.
180x - 1 = 77y .. first set of values for this equation are (x,y)=(3,7) and next such value is (80,187) ... how do we find 1st set of values any method? since for 2nd set onwards we just add (77 , 180) to first set... but how do we get 1st set ???
A Natural Number N has 4 factors,If the sum of the factors of N excluding 1 and itself is 56, Find the sum of all the values that N can assume ??
7^9999 mod1000= ....?
Find the region bounded by
|x+y| +|x-y|=4 in a x-y plane.
ans=16, please post the approach
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Engineer? Weak VA ?
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