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Answers posted by balaji.thirumalai
Questions
1260
answers
1
best answer
0
votes
Which of the following triangles have no lines of symmetry?
answered
Aug 26, 2016
The scalene triangle which has all 3 unequal sides and unequal angles has no lines of symmetry. An I...
0
votes
In which of these figures is the line of symmetry drawn incorrectly?
answered
Aug 26, 2016
The line of symmetry is drawn correctly for figures A, B and C. Note that A and C will have other li...
0
votes
Which of the following letters do not have at least one line of symmetry?
answered
Aug 26, 2016
Let's draw the lines of symmetry for the letters as follows:We can see that it is symmetrical along ...
0
votes
Which of the following letters do not have at least one line of symmetry?
answered
Aug 26, 2016
Let's draw the lines of symmetry for the letters as follows:We can see that it is symmetrical along ...
0
votes
The following figure is symmetrical across which of these lines?
answered
Aug 26, 2016
It is obvious that the image is symmetrical across X and Y. But what about P and Q?Its easier to vis...
0
votes
Which of the boxes needs to be shaded so that the figure has a line of symmetry?
answered
Aug 26, 2016
As we can see below, shading (2) makes the figure symmetrical. The student should try working out wh...
0
votes
Which of the following do not have at least one line of symmetry?
answered
Aug 26, 2016
As we can see below, both (A) and (B) have at least one line of symmetry. But (C) and (D) don't.
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votes
This is how Rahul spends a typical day. How many more hours does he spend on studies (school and homework) compared to leisure?
answered
Aug 26, 2016
The number of hours he spends on his homework and school is 9 (6 + 3, i.e, the bar graph for homewor...
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votes
This is how Rahul spends a typical day. How many more hours does he spend on leisure activities like TV and games compared to doing his homework?
answered
Aug 26, 2016
The number of hours he spends on his homework is 3 (Bar is between 2 and 4).The number of hours he s...
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votes
This is how Rahul spends a typical day. How many more hours does he spend Relaxing compared to getting Ready?
answered
Aug 26, 2016
The number of hours he spends Sleeping and Relaxing is 8.The number of hours he spends getting read...
0
votes
These are the runs scored by Sachin Tendulkar in test matches over his life time against various countries. How many more runs has he scored against Zimbabwe compared to Bangladesh?
answered
Aug 26, 2016
The number of runs scored against Bangladesh is 820. The number of runs scored against Zimbabwe is 9...
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votes
These are the runs scored by Sachin Tendulkar in test matches over his life time against various countries. How many more runs has he scored against Australia compared to Zimbabwe?
answered
Aug 26, 2016
The number of runs scored against Australia is 3630. The number of runs scored against Zimbabwe is 9...
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votes
This is the sales data of the number of cars sold by Tom in the first half of the year. In case its not clear from the graph, he sold 2000 cars in Jan and 1000 in Feb. If he is paid Rs. 10,000 per car sold, how much extra money did he make in May and June compared to the the first two months?
answered
Aug 25, 2016
The number of cars sold per month is as follows:Jan:2000, Feb: 1000, Mar: 1200, Apr: 1500, May: 1800...
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This is the sales data of the number of cars sold by Tom in the first half of the year. How many cars did Tom sell from April to June compared to Jan to March?
answered
Aug 25, 2016
The number of cars sold per month is as follows:Jan:2000, Feb: 1000, Mar: 1200, Apr: 1500, May: 1800...
0
votes
The three year sales data across 5 different cities is shown here. Who had the biggest jump in sales in 2014 over 2013?
answered
Aug 25, 2016
Let us look at the difference in sales between 2014 and 2013 for the cities:Chennai: Sales in 2014 -...
0
votes
The three year sales data across 5 different cities is shown here. Which city had the highest jump in sales from 2014 to 2015?
answered
Aug 25, 2016
Let us look at the difference in sales between 2014 and 2015 for the cities:Chennai: Sales in 2015 -...
0
votes
The three year sales data across 5 different cities is shown here. Which city has seen the biggest jump in unit sales from 2013 to 2016?
answered
Aug 25, 2016
Let us look at the 4 options: (A) Chennai: Sales in 2015 - Sales in 2013 = 8000 - 2000 = 60...
0
votes
What is the area of the un-shaded region. Assume that the outer quadrilateral is a square?
answered
Aug 25, 2016
Using the information given, we can calculate the height and length of the yellow shaded region insi...
0
votes
What is the perimeter of the un-shaded region?
answered
Aug 25, 2016
Using the information given, we can calculate the height and length of the yellow shaded region insi...
0
votes
What is the perimeter of the outer boundary of this figure?
answered
Aug 25, 2016
Using the information given, we can calculate the length EF as 6 cm + 12 cm + 6 cm = 24 cm.Similarly...
0
votes
What is the total area of the figure?
answered
Aug 25, 2016
We can break this problem down into finding the area of two rectangular regions as shown below:Area ...
0
votes
What is the Area of the region shaded in yellow?
answered
Aug 25, 2016
The area of the square on top is 36 sq cm, so the length of its side must be 6 cm.The side of the sq...
0
votes
If the perimeter of a square is equal to its area, what is the length of the square in units?
answered
Aug 25, 2016
If the length of a square is a, the area $A = a \times a$ and the perimeter, $P = 4 \times a$If nume...
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votes
If the length of a side of square is doubled, what happens to its perimeter?
answered
Aug 25, 2016
If the length of a square is doubled, its perimeter is also doubled.The perimeter of a square is 4 x...
0
votes
If the length of a side of square is doubled, what happens to its perimeter?
answered
Aug 25, 2016
If the length of a square is doubled, its perimeter is also doubled.The perimeter of a square is 4 x...
0
votes
Which of the following statements is incorrect?
answered
Aug 25, 2016
(1) The perimeter of any regular figure is the product of its sides.This is FALSE. For instance, in ...
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votes
Which of the following statements is incorrect?
answered
Aug 25, 2016
(1) In a right angle triangle, the other two angles must be acute angles: This is accurate as shown ...
0
votes
Arrange the following in ascending order of its vertices from minimum number of vertices to maximum number of vertices?
answered
Aug 25, 2016
(1) is a cuboid that has 8 vertices for the two squares that make up its sides(2) Thie one has 6 ver...
0
votes
How many triangles are there in this figure?
answered
Aug 25, 2016
Let's count the inner triangles that don't overlap first - there are 9 of them, plus the outer trian...
0
votes
How many squares are there in this figure?
answered
Aug 25, 2016
The figure consists of a 3x3 square and a 2x2 square with one of the squares meshed inside a larger ...
0
votes
How many squares are there in this figure?
answered
Aug 25, 2016
In a 4x4 grid there are 14 squares as shown below: 9 individual 1x1 squares, and 4 that are 2x2 squa...
0
votes
How many squares are there in this figure?
answered
Aug 25, 2016
There are 6 squares in the figure as shown below:
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votes
Which of the following figures has an area of 12 and a perimeter of 16 if each square has a side of 1 unit in length?
answered
Aug 25, 2016
(A): Area = 4 x 3 = 12; Perimeter = 4 + 3 + 4 + 3 = 14(B): Area = 6 x 2 = 12; Perimeter = 6 + 2 + 6 ...
0
votes
I leave the train station at 12:05 PM and reach the airport at 14:25 PM. How long has it taken me to travel that distance?
answered
Aug 25, 2016
I leave the station at 12:05 PM, I reach the airport at 14:25 PM.Time taken from 12:05 PM to 13:00 P...
0
votes
I live in India and have a faulty clock that shows the following time, when the actual time is 12:17 PM. I take the clock to London which is five and half hours behind India in time. If the time on my clock in London is 3:30 PM, what is the exact time in India?
answered
Aug 25, 2016
When the time is 12:17 PM, my clock shows 12:32, which means that is running 32 - 17 = 15 minutes fa...
0
votes
I have a faulty clock that shows the following time, when the actual time is 13:01 PM. Calculate the actual time, if my clock displays 4:18 AM.
answered
Aug 25, 2016
When the time is 13:1 PM, my clock shows 12:32, which means it is 29 minutes slow (12:32 + 29 mins =...
0
votes
22:45 hours in a 12 hour clock is?
answered
Aug 25, 2016
22:45 hours is essentially 22 hours and 45 minutes in a 24 hour clock or a typical day.In a 12 hour ...
0
votes
Express $1 \;\text{day}\; 6\; \text{and} \large\frac{2}{3}$$\; \text{hours}$ into minutes.
answered
Aug 25, 2016
1 day has 24 hours and each hour has 60 minutes $\rightarrow = 24 \times 60 = 1440$ minutes6 hours $...
0
votes
How much does each side of the scale weigh?
answered
Aug 25, 2016
There are 10 blocks of Z on one side and 2 blocks on the other side along with 2 blocks of Y and a w...
0
votes
How much does each side of the scale weigh?
answered
Aug 25, 2016
There are 10 blocks of Z on one side and 6 blocks on the other side along with a weight of 12 Kg.If ...
0
votes
What is the mass of Z in Kg?
answered
Aug 25, 2016
There are 10 Blocks of Z which all add up to 12 Kgs, therefore each block is one-tenth of that, i.e,...
0
votes
What is the mass of X, Y and Z in Kg?
answered
Aug 25, 2016
We observe from the second figure that two blocks of X equals 9 Kg. Therefore one block of X must be...
0
votes
What is the mass of X, Y and Z in Kg?
answered
Aug 25, 2016
We observe from the second figure that two blocks of X equals 18 Kg. Therefore one block of X must b...
0
votes
If the Boiling point of water is 212$^{\circ}F$. What is it in $^{\circ}C$?
answered
Aug 25, 2016
To convert Celsius to Fahrenheit, we multiply by 1.8 and add 32. To convert back, we subtract 32 and...
0
votes
At breakfast the temperature was $36^{\circ}C$; By lunch it had gone up by $8^{\circ}$ and cooled off by $12^{\circ}$ by dinner. What was the temperature at dinner?
answered
Aug 25, 2016
By dinner, the temperature was $36+8-12 = 32^{\circ}C$. Lets convert this to Fahrenheit and see if i...
0
votes
Which temperature is the warmest?
answered
Aug 25, 2016
Lets convert all to Fahrenheit first: To convert Celsius to Fahrenheit, we multiply by 1.8 and add 3...
0
votes
The most appropriate temperature at this place (South Pole) would be?
answered
Aug 25, 2016
Among the four options the most likely one would be $-32^{\circ}C$The freezing point of water is 0$^...
0
votes
If the Boiling point of water is 100$^{\circ}$ C and its freezing point is 0$^{\circ}$ C, what is the difference between the boiling point and freezing point in $^{\circ}$ F?
answered
Aug 25, 2016
To convert Celsius to Fahrenheit, we multiply by 1.8 and add 32.The boiling point of water is 100$^{...
0
votes
What is 98334.2678 rounded to the nearest tenths?
answered
Aug 25, 2016
98334.2678 rounded off to the nearest tenth = 98334.3 (i.e, 0.2678 rounds of to 0.268 then 0.27 then...
0
votes
The given picture gives the different parts of a blanket that will be made with different color fabric. What decimal represents the part of blanket that is green and what decimal represents the part of blanket that is unshaded?
answered
Aug 25, 2016
The total number of squares in the box = 100.There are 16 green boxes which means that $\large\frac{...
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