A box contains cards numbered 8 to 90. A card is drawn at random from the box. Find the probability that the number on the drawn card is 1) a square number. 2) a multiple of 10. (and please can anyone tell me how you count the total number of cards in the fastest way possible)
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2) multiple of 10-9/90
1) square number-5/90
these are the answers to your questions
1) square number-5/90
these are the answers to your questions
dhritideepasarania:
The card numbers are 8 to 90
yes l know
*are from
Okay then. Thank you for your answer
Answered by
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1)7/83.
2)9/83
from 8 to 90 there are 83 cards.( including 8)
2)9/83
from 8 to 90 there are 83 cards.( including 8)
How do you count the total no. Of cards containing in the box. Is it like (90-10)+3 or something?
just think...anyhow we need to include the card numbered 8. becoz its said from 8 to 90.
i hope you understood what I meant
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