There are two stationary buoys (A and B) on a river. B is downstream from A. At 9AM, a raft starts floating downstream from A to B. The still water speed of the raft is 0 kmph. At the same time, a boat starts out from B to A and meets the raft in 5 hours and then reaches A. It immediately returns to B. Find the time that the boat and the raft reached B, if it is given that they both reached together?
Find the maximum value of n for which the sum to n terms of the progression 7, 10, 13,... is less than 2500
- 39
- 40
- 35
- 38
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Devarsh distributed Rs.100, 190 times, Rs.200, 220 times and Rs.300, 180 times to all the boys in an orphanage one by one. Some naughty boys went more than once to get the money. Out of them 30, 40, 60 and 20 boys got Rs.800, Rs.700, Rs.600 and Rs.300 respectively. What would have been the maximum number of boys in the orphanage? TITA.
What are the best entrance exams one can sit for after his CAT preparation besides CAT and other MBA tests ? Government or Non Government.
There is a staircase of 10 steps. In how many ways can Amit climb the staircase if he can take a maximum of 3 steps at a time?
﴾in numerical value﴿
A and B throw one dice for a stake of Rs. 11, which is to be won by the player who first throws a six. The game ends when the stake is won by A or B. If A has the first throw, what are their respective expectations?
(a) 5 and 6 (b) 6 and 5 (c) 11 and 0 (d) 10 and 1
How to do this ??
19. Which investment gives a better return, assuming the face value of shares to be Rs. 10? A. 5% stock at 75, subject to 30% income tax B. 4% stock at 90, tax free
(a) B (b) A (c) Both A and B (d) None of these
if a x^2+bx+c=0 is a quad eqn and a<0 then the max value at x=-b/2a is??
22. Study the question and the statements given below. Decide whether any information provided in the statement(s) is redundant and/or can be dispensed with, to answer it. If 7 is added to numerator and denominator each of fraction a/b, will the new fraction be less than the original one?
Statement I: a = 73, b = 103
Statement II: The average of a and b is less than b
Statement III: a – 5 is greater than b – 5
(a) II and either I or III (b) Only I or II (c) Any two of them (d) Any one of them
In a row at a bus stop, A is 7th from the left and B is 9th from the right. They both interchange their positions. A becomes 11th from the left. How many people are there in the row?
(a) 18 (b) 19 (c) 20 (d) 21
A big cube is formed by rearranging the 160 coloured and 56 non-coloured similar cubes in such a way that the exposure of the thecoloured cubes to the outside is minimum. The percentage of exposed area that is coloured is:
(1) 25.9% (2) 44.44%
(3) 35% (4) 48.52%
(5) None of these
How many times would zero be used while writing all the natural numbers from 1-63 in the binary system? Approach??
7^11^22^23 what will be its unit digit????? Approach please to solve dis kind of raise to raise problem....Is der any general method????
Approach please?
Rajesh started in his car from towm p towards town Q at 51km/hr.after every minute the speed of his car increased by 1km/hr.the distance between P and Q is 3775/60 km.find the time he would take to reach Q (IN MINUTES)
A number leaves a remainder 5 when divided by 12 and leaves a remainder 9 when divided by 16. What is the sum of the smallest 4 natural numbers that satisfy the above condition?
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What will be the least number which when doubled will be exactly divisible by 12,18,21 and 30?
A)630
B)360
C)603
D)306
E)None of these
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Solution plzz..