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(#M40024514) TCS QUESTION Keep an EYE

In how many ways can we form 6 digit number from 1,2,3,4,5,6,7 so that last and second last digit must be even.

Asked In TCS Amit Kumar (11 years ago)

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(#M40024423) TCS QUESTION Keep an EYE

The age of ram and sam are in the ratio 5:6 and after 4 years their ratios are 7:8 then what is the present age of sam?

Solution

The present age of ram and sam is 5:6 i.e 5x for ram and 6x for sam.
5x/6x.
after 4 yrs the ratio is 7:8
5x+4 = 7
--------
6x+4 = 8
cross multiply.u will get x=2
sam present age is 12yrs i.e(6x =6*2=12)


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Asked In TCS Amit Kumar (11 years ago)

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(#M40024422) TCS QUESTION Keep an EYE

Praveen Prasad an elevator starts with 5 passengers and stops at 5 diff floors of an apartment find the probability of all 5 passengers are of diff floors
option
a. 24/109
b. 55/412
c. 105/512
d. none

Asked In TCS Amit Kumar (11 years ago)

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