Official Quant thread for CAT 2013

MBA CAT 2024
11221
@vbhvgupta said:
But the ans give as can be ans using both?
Bhai agar hota greater than 28...then it wud be only 24....
par atleast 28 mein toh it shud be cannot be answered...

kabhi kabhi books mein answer galat bhi ho sakta hai...shayad...

baaki ask the experts...

11222
@vbhvgupta said:
How many more days will A take to complete the given task: I. A has completed 30% of the work in 12 days II. A will continue to work at the same uniform pace at which he had been working so farIs the ans for this shoud be 1only OR using both statement together???
i think both are required??
11223
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
only second..

first se nhi aa sakta...cause remaining 30% mein we cannot find how many have black eyes...
:)
11224
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
Can be answered by statement 2 alone. But not by 1 alone.
11225
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
Can be answered by using 2 alone. (EDIT)
10% from Venn diagram.
11226
@pari19O1 said:
Bhai agar hota greater than 28...then it wud be only 24....par atleast 28 mein toh it shud be cannot be answered...kabhi kabhi books mein answer galat bhi ho sakta hai...shayad...baaki ask the experts...

mai bhi ye hi soch rhaa tha.....I think it shd be can not be answered
11227
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
2 alone?
11228
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
Can be ans by ii only
11229
@vbhvgupta said:
mai bhi ye hi soch rhaa tha.....I think it shd be can not be answered
naa yaar...agar 60% have black eyes unme 50% black hairs toh baaki 10% will have black eyes but not black hairs....

par haan hum woh 10% calculate nhi kar sakte jab tak total naa pata ho...


par yahan %age poocha hai toh i think from 2nd we can find that out...
11230
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
using both the statement
11231
@maddy2807 said:
using both the statement
Bhai kaise??
11232
@pari19O1 said:
Bhai kaise??
10% a raha hai. lekin i m not sure whether to count % of people who do not have black eye and hair. usko confirm karne k liye we have to use both the statement. so as to ensure that 100% people have either black eye or black hair or both.
Still confused. Wat ur take?
11233
@maddy2807 said:
10% a raha hai. lekin i m not sure whether to count % of people who do not have black eye and hair. usko confirm karne k liye we have to use both the statement. so as to ensure that 100% people have either black eye or black hair or both. Still confused. Wat ur take?
What percent of people in Hyderabad have black eyes but not black hair?

Black eyes is what we shud be concerned about...among the 60%, 50% have black hairs as well.. but for the remaining 10% whether they have hairs or not is not what we care about..

black hairs is not what we shud look for....

isiliye i think statement 1 is of no use to us....

:)
11234
@vbhvgupta said:
50% of the people in Hyderabad have black eyes and black hair. What percent of people in Hyderabad have black eyes but not black hair? i. 70% of the people in Hyderabad have black hair ii. 60% of the people in Hyderabad have black eyes.
only II ?
11235

A,B,C inherited few gold coins. If they share those coins in the ratio 1:5:8, then 1 coin remains left out . But if they share the coins in the ratio 1:3:7 then no coin is left out. Comparing both the cases what is the minimum possible difference in number of coins that C can get??????

Detailed Solution please!!!!!

11236
What is the sum of all internal angles of a regular polygon?
i. The external angle is 60
ii. The polygon has 6 sides.
11237
@12sahil12 said:
A,B,C inherited few gold coins. If they share those coins in the ratio 1:5:8, then 1 coin remains left out . But if they share the coins in the ratio 1:3:7 then no coin is left out. Comparing both the cases what is the minimum possible difference in number of coins that C can get??????Detailed Solution please!!!!!
7?
14x+1 = 11y
x = 7 and y = 9 satisfies the condition
11238
@12sahil12 said:
A,B,C inherited few gold coins. If they share those coins in the ratio 1:5:8, then 1 coin remains left out . But if they share the coins in the ratio 1:3:7 then no coin is left out. Comparing both the cases what is the minimum possible difference in number of coins that C can get??????Detailed Solution please!!!!!
7 coins

If shared in ratio 1:5:8, 1 coin is left out... Means in other words if we divide the total no by (1+5+8) i.e. 14, 1 is remainder
Similarly in second case, if we divide the total no by (1+3+7) i.e. 11, remainder is 0.

Least possible such no is 99.

So by first case 1 coin is left out & remaining distributed in ratio 1:5:8. Hence C gets 56.

N in second case 99 coins are distributed in ratio 1:3:7. So C gets 63.

Diff.=7
11239
@vbhvgupta said:
What is the sum of all internal angles of a regular polygon? i. The external angle is ii. The polygon has 6 sides.
The external angle is.......? Is any value given here?

If yes then can be solved by using anyone statement.
11240
@adwaitjw said:
The external angle is.......? Is any value given here?If yes then can be solved by using anyone statement.
Can you explain??? I have edited the Q