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(#M40002901) TCS QUESTION Keep an EYE

how many 1s are present between 1 to 1000?

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(#M40002865) TCS QUESTION tcs Keep an EYE

A cyclist buys a cycle for 29 pounds paying with a 50 pound cheque. The seller changes the cheque next door and gives the cyclist change. The cheque bounces so the seller paid his neighbour back. The cycle cost the seller 12 pounds. How much did the seller lose?

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(#M40002861) TCS QUESTION tcs Keep an EYE

Q1. Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line
while the others lie on the other side.
The number of 1-sets of P is denoted by n1(P). The minimum value of n1(P) over all configurations P of 5 points in the plane in general position (.i.e no
three points in P lie on a line) is
a)3 b)5 c) 2 d)1

Asked In TCS purvi (14 years ago)

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(#M40002857) TCS QUESTION tcs Keep an EYE

1! + 2! + ……. + 50!=?
a)3.1035*10^64 b)2.1021*10^65 c)3.1035*10^63 d)3.1035*10^62

Asked In TCS purvi (14 years ago)

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(#M40002856) TCS QUESTION tcs Keep an EYE

3, 12, 7, 26, 15, ?
a)54 b)27 c)108 d)31

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(#M40002855) TCS QUESTION tcs Keep an EYE

. 3, 22, 7, 45, 15,? , 31

Asked In TCS purvi (14 years ago)

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(#M40002828) TCS QUESTION tcs Keep an EYE

How many 9 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if the repetition is allowed?
a)5^7 b)5^6 c)5^9 d)5^8

Solution

_ _ _ _ _ _ _ _ _ (9 digit number)
Digits that can be used = 1, 2, 3, 4 and 5
For a number to divisible by 4, the last two digits have to be divisible by 4
So, the units digit cannot be 1, 3 or 5
If the units digit is 2, only 12, 32 adn 52 are acceptable as the last two digits
If the units digit is 4, only 24 and 44 are acceptable as the last two digits.
So, total 5 cases 12,24,32,44,52 are possible for the last two digits.
Now, the first 7 digits of the 9 digit number can be filled in 5^7 ways as each place can be filled by 1, 2, 3, 4 or 5.
So, desired answer = 5^7*5 = 5^8
This answer is given by Amitesh kumar and is right

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Asked In TCS purvi (14 years ago)

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(#M40002816) TCS QUESTION tcs Keep an EYE

A car manufacturer produces only red and blue models which come out of the final testing area completely at random. What are the odds that 5 consecutive cars of the same color will come through the test area at any one time?
i) 1 in 16
ii) 1 in 125
iii) 1 in 32
iv) 1 in 25

Solution

The probability for the question will be 1/16 and answer of AMAR
First car can come out with any colour with prob 1.
second car will come out with probability of same color as 1/2.
third car will come out with probability of same color as 1/2.
4th car will come out with probability of same color as 1/2.
5th car will come out with probability of same color as 1/2.

so probability is 1*1/2* 1/2* 1/2 *1/2=1/16
is right but question is saying about odds and odds mean favorable probability/non favorable probability = (1/16)/(15/16) = 1/15
odds has two category 1) in favour 2) against
odds in favour = favorable probability/non favorable probability
odds against = non favorable probability/ favorable probability


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Asked In TCS purvi (14 years ago)

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(#M40002813) TCS QUESTION tcs Keep an EYE

A girl has to make pizza with different toppings. There are 8 different toppings. In how many ways can she make pizzas with 2 different toppings

Asked In TCS purvi (14 years ago)

Solved Amarendra Pratap Singh Read Solution (2)

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(#M40002812) TCS QUESTION tcs Keep an EYE

X is 3 years yunger to Y. X's father is a businessman who invested 10000/- at 8% rate of
interest n obtained his amount after 10 years. Y's father is a job holder who invested around
20000 at 2% rate n obtained his amount after 20 years.Now Compunded both of dem get
around ABC rs/-(dnt remenbr).After 5 years the ratio of ages of X n Y is 1:2. Now X's father is
20 years older to Y n Y' father is 30 years more than X. After 20 years again X's mother asks X's father to purchase a LCD TV whch costs around 45000/-.
what is the age of X n Y together?

Asked In TCS purvi (14 years ago)

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