plzz solve question no :30
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The answer should be 7/16
ashishkhare687:
No it's wrong
The answer is 1/2
how can u tell directly the answer will be 7/16
Because I done it
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Ans:1/2
Two sets of no. are (1,2,3,4) and (1,4,9,16)
Total no. Of Sample space(no. Of
outcomes) ,n(S) =16 as total 16no. Can
be formed...(I)
Now, 1×1=1, 1×4=4,1×9=9 ,1×16=16
Total 3 nos i.e 1,4,9<(smaller than ) 16...(I)
Again 2×1=2 ,2×4=8 ,2×9=18 and 2×16=32
Total 2 nos. i.e 2and 8 is smaller than 16...(iii)
Again,3×1=3 ,3×4=12, 3×9=27 ,3×16=48
Total 2 nos. i.e 3 and 12 are smaller than 16...(iv)
Again,4×1=4 ,4×4=16 ,4×9=36, 4×16=64
Total 1 no i.e 4 is smaller than 16..(v)
From (ii)(iii)(iv)and (v)
Total 8 nos are there whose products is less than 16.
So,no.of favourable outcomes or no. Of event ,n(E)=8
P(E)=n(E)/n(S)=8/16=1/2.
Hope it helps.
Two sets of no. are (1,2,3,4) and (1,4,9,16)
Total no. Of Sample space(no. Of
outcomes) ,n(S) =16 as total 16no. Can
be formed...(I)
Now, 1×1=1, 1×4=4,1×9=9 ,1×16=16
Total 3 nos i.e 1,4,9<(smaller than ) 16...(I)
Again 2×1=2 ,2×4=8 ,2×9=18 and 2×16=32
Total 2 nos. i.e 2and 8 is smaller than 16...(iii)
Again,3×1=3 ,3×4=12, 3×9=27 ,3×16=48
Total 2 nos. i.e 3 and 12 are smaller than 16...(iv)
Again,4×1=4 ,4×4=16 ,4×9=36, 4×16=64
Total 1 no i.e 4 is smaller than 16..(v)
From (ii)(iii)(iv)and (v)
Total 8 nos are there whose products is less than 16.
So,no.of favourable outcomes or no. Of event ,n(E)=8
P(E)=n(E)/n(S)=8/16=1/2.
Hope it helps.
thank u soo much.
Ur welcome
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