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(#M40000845) TCS QUESTION tcs recent paper Keep an EYE

how many 13 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if repetition of digits is allowed?

Solution

to be divisible by 4, last two digits must be divisible by 4. which are 12, 24, 32, 44, 52. so 5 combinations are possible for last two digits also 5 combinations each for remaining 11 places. so the answer is 5^12.This is the solution by SUNEIL and is the correct one

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Asked In TCS Yashar (14 years ago)

Solved Read Solution (6)

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(#M40000844) TCS QUESTION tcs recent paper 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

Asked In TCS Yashar (14 years ago)

Solved suneil Read Solution (8)

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(#M40000843) TCS QUESTION tcs recent paper Keep an EYE

Which is the smallest no which divides 2880 and gives a perfect square?
a)4 b)9 c)3 d)5

Asked In TCS Yashar (14 years ago)

Solved KTP Read Solution (5)

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(#M40000842) TCS QUESTION tcs recent paper Keep an EYE

3 persons A, B, C were there. A always says truth, B lies on monday, tuesday and wednesday but C lies on thrusday, friday & saturday. one day A said that B & C said to A, that B said yesterday was one of the days when I lies. C said that yesterday was one of the days when I lies too then which day was that?
a) Sunday
b) Thursday
c) Saturday
d) Tuesday

Asked In TCS Yashar (14 years ago)

Solved Rupkatha Nag Read Solution (7)

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(#M40000841) TCS QUESTION tcs recent puzzle Keep an EYE

One grand father has 3 grand children two of the age difference is 3.Eldest child age is 3 times the youngest childs age and the eldest child age is two year more than the sum of other two children. Find what is the age of the elders child?
a)18 b)22 c)30 d)10

Solution

let the age of eldest child is E , that of elder child is M and that of youngest child is Y, then according to the given conditions
E = 3Y ....(1)
E = 2 + M + Y ....(2)
now third condition is somewhat complicated,
according to this condition 'two of the age difference is 3' so three cases will arise 1) E - M = 3, ......(3)
2) M - Y = 3, ......(4)
3) E - Y = 3, ......(5)
if we take first of the 3 conditions then on solving (1), (2) and (3) we will get E = 3, M = 0, Y = 1 which is wrong
now on solving (1), (2) and (4) we will get E = 15, M = 8, Y = 5
similarly on solving (1), (2) and (5) we will get E = 4.5, M = 1, Y = 1.5
only E = 15, M = 8, Y = 5 is correct so age of elder child is 8 years

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Asked In TCS Yashar (14 years ago)

Solved Read Solution (4)

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(#M40000838) TCS QUESTION tcs recent puzzle Keep an EYE

A sheet of paper has statements numbered from 1 to 70. For all values of n from 1 to 70. Statement n says At least n of the statements on this sheet are false.Which statements are true and which are false?

a) The even numbered statements are true and the odd numbered are false.
b) The odd numbered statements are true and the even numbered are false.
c) The first 35 statements are true and the last 35 are false.
d) The first 35 statements are false and the last 35 are false.

Asked In TCS Yashar (14 years ago)

Unsolved Read Solution (7)

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(#M40000840) TCS QUESTION tcs recent puzzle Keep an EYE

One man want to build a wall .The length and breadth of the wall are 20 and 30 respectively. He need 35 bricks for one square centimeter then how many bricks he need?
a)21,500 b)30,000 c)21,000 d)20,000

Asked In TCS Yashar (14 years ago)

Solved baldev Read Solution (6)

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(#M40000839) TCS QUESTION tcs recent puzzle Keep an EYE

If a and b are mixed in 3:5 ration and b and c are mixed in 8:5 ration if the final mixture is 35 liters, find the amount of b?
A) 13.34 b) 15.73 c) 16.73 d) 9.45

Asked In TCS Yashar (14 years ago)

Solved subhendu bikash roy Read Solution (5)

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(#M40000836) TCS QUESTION tcs recent question Keep an EYE

Ferrari S.P.A is an Italian sport car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1928 as Scuderia Ferrari,the company sponsored drivers and manufactured race cars before moving into production of street-legal vehicles in 1947 as Ferrari S.P.A. Throughout its history, the company has been noted for its continued participation in racing, especially in formula 1 where it has employed great success .Rohit once bought a Ferrari. It could go 4 times as fast as Mohan's old Mercedes. If the speed of Mohan's Mercedes is 35 km/hr and the distance traveled by the Ferrari is 490 km, find the total time taken by Rohit to drive that distance.

Asked In TCS Yashar (14 years ago)

Solved suneil Read Solution (3)

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(#M40000835) TCS QUESTION tcs recent puzzle Keep an EYE

In T.Nagar the building were numbered from 1 to 100.Then how many 4's will be present in the numbers?
a)18 b)19 c)20 d)21

Asked In TCS Yashar (14 years ago)

Solved suneil Read Solution (7)

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