Latest self Aptitude Question SOLUTION: (1/10)18 - (1/10)20 = ? A. 99/1020 B. 99/10 C. 0.9 D. None of the above

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(#M40007844) SELF question Keep an EYE

(1/10)18 - (1/10)20 = ?
A. 99/1020 B. 99/10 C. 0.9 D. None of the above

niru (12 years ago)

Solved Aman Read Solution (8)

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Aman  (12 years ago)

none of these

(1/10)(18-20) = -2/10 = -0.2

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B.Senthil Kumar  (12 years ago)

(1/10)18-(1/10)20=9/5-2=-1/5
so the answer is nonw of the above

Is this solution Helpfull? Yes (2) | No (4)  

tarun wadhwa  (12 years ago)

it's D. 18/10 - 20/ 10 = 18-20/10 = -2/10 = -1/5

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Dolly  (12 years ago)

In today's puzzle

Sum of all the numbers formed by the integers 2,3,4,5,8 is ....

It is not given whether digits can be repeated.

whether there is any limit on number of digits in a number formed by these integers.

Please clarify.

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Govind  (12 years ago)

@ Dolly,

Question should be

Sum of all the five digit numbers formed by the integers 2,3,4,5,8 without repetition of digits.

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Dolly  (12 years ago)

Dear Admin,

It is not fair fair on your part to change language of qn on next day .
According to statement
Sum of all the numbers formed by the integers 2,3,4,5,8 is ....

The sum can not be calculated as there are infinite numbers that can be made with these integers.

On next day , you changed the statement to help some members with wrong answers with new statement

Sum of all the 5 digit numbers formed by the integers 2,3,4,5,8 is
(Repetition is not allowed)


Pls respond with unbiased approach.

Pls accept mistake if statement printed is wrong instead of punishing those who gave correct answer as per given statement

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Vinay Vishwakarma  (12 years ago)

ans-D
none of this

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Somineni Hareesh  (9 years ago)

A.10/1020
1/1018(1-1/102)
1/1018(99/100)
=99/1020

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