Some good source for Installment questions please... Thanks 😃
there are 5 balls,one each of white,black,green,yellow and red,and three boxes of different sizes such that all the balls can be placed in any of the boxes.In how many ways can the balls be placed in the boxes so that no box is empty?
a fraud shopkeeper uses a special weighing balance in which one pan is heavier than the other.while purchasing the material,he places a 1 Kg weight on the heavier side but while selling the same product, he places 1 Kg weight on the lighter side. Even if he sells his goods at the CP,he makes an overall gain of 50%.By how many grams is one side of the balance heavier than the other?
How many natural numbers from 1 to 2011 has a sum of digits which is a multiple of 5.
X-intercept in f(x)=x+|x|.....a basic ques.
for how many integers m is m^3 - 8m^2 + 20m - 13 a prime num?
- 1
- more than 3
- 3
- 2
0 voters
The difference between the compound interest and simple interest for 2 years on a sum of money is Rs. 160. If the total simple interest is Rs. 2,880, the rate percentage is???
Remainder 9^1111 mod 19 ?
If N is the least five-digit number which leaves remainders of 1, 2, 3, 4 and 6 when it is divided by 4, 5, 6, 7 and 9 respectively, find the sum of the digits of N.
Approach
There are 7 children standing in a line not all of whom have the same number of cakes with them.if the 1st child distributes his cakes among the remaining 6 children such that he doubles their respective number of cakes,then he will be left with 4 cakes.instead, If the 2nd child takes away 2 cakes from each of the remaining 6 children, then he will be left with 3 less than the number of cakes that the 1st child initially had.what is the total number of cakes with the 3rd child, the 4th child,...,the 7th child?
Approach please
Only a single rail track exists between station A and B on a railway line. One hour after the north bound super fast train N leaves station A for Station B, a south bound passenger train S reaches station A from station B. The speed of the super fast train is twice that of a normal express train E, while the speed of a passenger train is half that of E. On a particular day N leaves for station B from Station A, 20 minutes behind the normal schedule. In order to maintain the schedule both N and S increased their speed. If the super fast train doubles its speed, what should be the ratio (approximately) of the speed of passenger train to that of the super fast train so that passenger train S reaches exactly at the scheduled time at station A on that day.
- 1:6
- 1:4
- 1:3
- 1:5
0 voters
The perimeter of an equilateral triangle equals the perimeter of a rectangle.
If one of the sides of the rectangle equals the side of the triangle.
Find the ratio of the ares of the triangle and the rectangle ???
Mr. A and his wife invited a total of 10 families on their marriage anniversary. while the host family had just the two members, each family invited consisted of four members.If every person in the party shook hands with every other person belonging to a different family once, then find the number of handshakes that took place in the party ??
In how many distinguishably different ways can a cube be painted using at most 2 colours-white & black- such that each face is coloured with exactly one of the two given colours ??
The owner of an art shop conducts his business in the following way. Every once in a while he raises his price by X % & then while later he reduces all the new prices by X%. After one such up down cycle the price of the painting reduced by Rs.441. After a second up down cycle the painting was sold for 1944.81. What was the original price of the painting?
a. 2756.25 b.2256.25 c. 2500 d. 2000
need a more quicker approch
A is a set of all those integers greater than 1 and less than 100 which are divisiblee by 3 or by 4 but not by both. what is the index of the highest power of thousand that occurs in the product of all the elements of A??
An astronomical clock is divided into 24 parts . The minute hand takes 1 hour to complete one rotation . The hour hand takes 24 hours to complete 1 rotation . Find the no. of times these two hands will be opposite to each other in a straight line .
Please provide a mathematical solution and also let me know the error in my approach .
My approach :
6t - t/4 = 180
so , t = 180*4/23
No. of times in 24*60 mins = (24*60)/ t = 46
However , the answer is 23 .
(a+b+c) = 216; ab+bc+ca = 9; what can be the maximum value of 'a'. Please share the approach.. OA don't know.. :)
Mona and Lisa are playing a game. In each round of the game exactly one among mona and lisa gets a point.If whoever gets a total of four points first, wins the game, then what is the total number of ways in which either of them can win the game ??
How to improve quant ? Scoring 40+ in VRC + LRDI but merely 20 in quant. Fetching too many negatives.