POST#1. GAT preparations:Quantitative portion:
Percentage questions:
X%=X/100
1%=1/100
(1/X)%=(1/X)*(1/100)
Percentage questions:
X%=X/100
1%=1/100
(1/X)%=(1/X)*(1/100)
1. What % of 60 is 15?
Ans:
What means unknown so What=x, Of means multiplication Sp Of=* and is means equal so is=(=)
Now writing equation:
X%*60=15
X%=X/100
Ans:
What means unknown so What=x, Of means multiplication Sp Of=* and is means equal so is=(=)
Now writing equation:
X%*60=15
X%=X/100
So
X/100*(60)=15
x = 15 * 100 / 60
x = 100/4 = 25
Answer: 25
X/100*(60)=15
x = 15 * 100 / 60
x = 100/4 = 25
Answer: 25
2. 25% of what number is 15?
3. 25% of 60 is what?
3. 25% of 60 is what?
POST #2 GAT preparations Zakat calculations
Simply divide the number by 40, you will get the Zakat Amount.
Find the Zakat on 48000?
48000/40 (4*10)
40=4*10
Multiplication direct mushkil hoti hai isilye 40=4*10
48000/4 =12000 then divide by 10 12000/10=1200 is answer
Simply divide the number by 40, you will get the Zakat Amount.
Find the Zakat on 48000?
48000/40 (4*10)
40=4*10
Multiplication direct mushkil hoti hai isilye 40=4*10
48000/4 =12000 then divide by 10 12000/10=1200 is answer
POST#3GAT Preparations
QUANTITATIVE PORTION:
QUANTITATIVE PORTION:
Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
How to solve:
Let the number be x.
x+17(means number is increased by 17) = (is equal to)60 (60 times) divide by x (reciprocal of number)
So
x+17=60/x
x^2+17x-60=0
(x+20)(x-3)=0
x is positive so x-3=0 x=3 answer
How to solve:
Let the number be x.
x+17(means number is increased by 17) = (is equal to)60 (60 times) divide by x (reciprocal of number)
So
x+17=60/x
x^2+17x-60=0
(x+20)(x-3)=0
x is positive so x-3=0 x=3 answer
POST # 4
GAT preparations
Quantitative Portion
Statistics:
Mean
Median
Mode
Range
GAT preparations
Quantitative Portion
Statistics:
Mean
Median
Mode
Range
Find the mean, median, mode, and range for the following list of values:
13, 18, 13, 14, 13, 16, 14, 21, 13
13, 18, 13, 14, 13, 16, 14, 21, 13
1. The mean is the usual average, so:
(13 + 18 + 13 + 14 + 13 + 16 + 14 + 21 + 13) ÷ 9 = 15
(13 + 18 + 13 + 14 + 13 + 16 + 14 + 21 + 13) ÷ 9 = 15
2. The median is the middle value, so I'll have to rewrite the list in order:
13, 13, 13, 13, 14, 14, 16, 18, 21
There are nine numbers in the list, so the middle one will be the
5th number
So the median is 14
13, 13, 13, 13, 14, 14, 16, 18, 21
There are nine numbers in the list, so the middle one will be the
5th number
So the median is 14
3. The mode is the number that is repeated more often than any other, so 13 is the mode.
4. The largest value in the list is 21, and the smallest is 13, so the range is 21 – 13 = 8.
Range=Largest-smallest
Range=Largest-smallest
Now Find the mean, median, mode, and range for the following list of values:
1, 2, 4, 7, 4
1, 2, 4, 7, 4
POST #5
GAT preparations
Quantitative portion.
Percentage increase and decrease in Areas/Length/radius...
First try to remind:
Area of:
Circle.
Rectangle.
Triangle.
Cube
their radius formula can be drawn from Area..
GAT preparations
Quantitative portion.
Percentage increase and decrease in Areas/Length/radius...
First try to remind:
Area of:
Circle.
Rectangle.
Triangle.
Cube
their radius formula can be drawn from Area..
Question:
The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
How to Answer:
take original length = x and original breadth = y.
Original area = xy.
As length is halved:
New Length: x/2
As breadth is triple
New Breadth: 3y
New area=New lenght*new breath
New area: (x/2*3y)=3/2(xy)=1.5xy
original area was xy
new area is 1.5xy
1.5xy-xy=0.5xy
So increase is 0.5
which means 50 percent increase:in area
The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
How to Answer:
take original length = x and original breadth = y.
Original area = xy.
As length is halved:
New Length: x/2
As breadth is triple
New Breadth: 3y
New area=New lenght*new breath
New area: (x/2*3y)=3/2(xy)=1.5xy
original area was xy
new area is 1.5xy
1.5xy-xy=0.5xy
So increase is 0.5
which means 50 percent increase:in area
POST#6.
GAT preparations:
Quantitative portion:
Time and Work Questions:
GAT preparations:
Quantitative portion:
Time and Work Questions:
Work from Days:
If A can do a piece of work in n days, then A's 1 day's work = 1/n
If A can do a piece of work in n days, then A's 1 day's work = 1/n
Days from Work:
If A's 1 day's work = 1/n then A can finish the work in n days
If A's 1 day's work = 1/n then A can finish the work in n days
Question:
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is
Answer:
A's 1 day's work = 1/15
B"s 1 days work= 1/20
B"s 1 days work= 1/20
work together means addition of both
so
(A+B) 1 day's work =1/15+1/20=7/60
so
(A+B) 1 day's work =1/15+1/20=7/60
now complete statement was work together for 4 days
so multiply by 4
so multiply by 4
(A+B) 4 day's work=7/60(4)=7/15
Now remaining work was 1-7/15=8/15 answer
Post more questions in comments for practice.
Post #7
GAT preparations
Quantitative Portion:
For trigonometry.
You should check out these formula's
GAT preparations
Quantitative Portion:
For trigonometry.
You should check out these formula's
