Flag 10 grade maths> Dialling a telephone number to his daught...
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Dialling a telephone number to his daughter an old man forgets the last two digits and dialled at random remembering only that the last two digits are different. The probability that the number dialled is correct is: (a) 1/10 (b) 1/45 (c) 1/90 (d) 1/135

Harshit Singh , 3 Years ago
Grade 12th pass
anser 1 Answers
Pawan Prajapati

Last Activity: 3 Years ago

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