guys can any one plssss suggest me a book or a useful website for airthmetic which includes topic
1. average ,mixture and alligation
2.ratio and proportion
3. profit and loss
any useful suggestion will be most welcome
Four boxes each contain 5 objects as follows-
Box 1 - 1 green and 4 gold objects.
Box 2 - 2 green and 3 gold objects.
Box 3 - 3 green and 2 gold objects.Box 4 - 4 green and 1 gold objects.
One of the boxes is chosen at random and 2 objects are drawn from it. What is the probability that both objects are gold?
a. 1/16
b. 1/8
c. 1/4
d. 1/2
guys can any one plsssss suggest me a book or a helpful website on airthmetic topic that must be included
1. profit and loss
2. ratio and proportion
3. average mixture and alligation
its kinda urgent
any suggestion will be most welcome.................😐
six fair coins are tossed and the number of heads is recorded. Let M be the most probable number of heads in a trial. What is the probability that M heads are observed in a given trial.
a. 13/16
b. 11/16
c. 5/16
d. 3/16
2 integers x and y are chosen from the interval [1,100] with replacement. What is the probability of x/y >1?
a. 99/200
b. 101/200
c. 49/100
d. 51/100
Please someone explain
The sum of the squares of the fifth and the eleventh term of an arithmetic progression is 3 and the product of the second term by the fourteenth term is equal to k. Find the product of the first term by the fifteenth term of the progression.
Options:
116k-39/90
296k+39/90
8k(12-39k)
4k(9-16k)
If the sum of the roots of the quadratic equation ax^2+ bx + c = 0 is equal to the sum of the squares of their reciprocals, then c/a, a/b, b/care in
Options:
1.
Arithmetic Progression
2.
Geometric Progression
3.
Harmonic Progression
4.
Depends on value of a, b and c
In an examination, there are 100 questions divided into three groups A, B and C such that each group contains at least one question. Each question in group a carries 1 mark, each question in group B carries 2 marks and each question in group C carries 3 marks. It is known that the questions in group A together carry at least 60% of the total marks.
Q1 If group B contains 23 questions, then how many questions are there in Group C?
(1) 1 (2) 2 (3) 3 (4) Cannot be determined
Q2. If group C contains 8 questions and group B carries at least 20% of the total marks, which of the following best describes the number of questions in group B?
(1) 11 or 12
(2) 12 or 13
(3) 13 or 14
(4) 14 or 15
A = {1, 2, 3……100}. r(m) = remainder when element m of set A is divided by 6, s(n) = remainder when element n of set A is divided by 5. Find number of pairs (m, n) such that r(m) * s(n) = 12.
Options:
1.340
2.680
3.320
4.660
A philanthropic lady goes with a bag of gold coins to four orphanages. She gives the first orphanage 4 coins and a quarter of the remaining coins. She applies the same procedure to the second, third and fourth orphanage and returned with a few coins left over. Needless to say, at every orphanage she gave away a whole number of coins.
Direction:
Question:
If she came home with fewer than 100 coins, then how many coins did the first orphanage get?
Options:
1.
36
2.
64
3.
272
4.
More than one possibility exists
There are 200 hundred students in a class. Each student is a member of at least one of the clubs-Eagles, Falcons, Tigers and Pythons.
1. If Each club has 100 students , then the number of students who are members of all the four clubs is at the most.
2. If each club has 120 students , then the number of students who are members of at the most two clubs is at the least.
3. If each club has 140 students , then the number of students who are members of at least three clubs is at least.
Approach plz..
The first term in a sequence of numbers is t1 = 5. Succeeding terms are defined by the statement tn - tn-1 = 2n + 3 for n >=2 . The value of t50 is
(A) 2700 (B) 2702 (C) 2698 (D) 2704 (E) 2706....
I dnt knw d right answer...
If 2x^2 – 2xy + y^2 = 289, where x and y are integers and x ≥ 0, the number of different ordered pairs(x, y) which satisfy this equation is
(A) 8 (B) 7 (C) 5 (D) 4 (E) 3
kindly solve the questns in the word doc attached.....thanks..
LCM of 2 nos :4199
Sum of two numbers : 468
Find the 2 numbers
How many four-digit perfect squares 'abcd' are possible such that 'dcba' is also a four-digit perfect square and is also a factor of 'abcd'? (given a >d)
The distance between the towns A and B is 1000 miles. There are 3000 apples in A, and the apples have to be delivered to B. The available car can take 1000 apples at most. The car driver has developed an addiction to apples: when he has apples aboard he eats 1 apple with each mile made.What is the largest number of apples that can be delivered to B.
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Hello Guys!!I am considerably bad at algebra,stuff like inequalities,functions and stuff!! with CAT just round the corner , would you suggest me to
leave it or try to understand the concepts once again?
Between two junction stations X and Y there are 12 intermediate stations.The number of ways in which a train can be made to stop at 4 of these stations so that no two of these halting stations are consecutive