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ans should be well explained ​

Help Me Ans Should Be Well Explained class=

Sagot :

#1

  • Let the lowest mark be x

ATQ

[tex]\\ \sf\longmapsto 2x+7=87[/tex]

[tex]\\ \sf\longmapsto 2x=87-7=80[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{80}{2}[/tex]

[tex]\\ \sf\longmapsto x=40[/tex]

Option B

#B

  • Observe all numbers in series

If numerator be n then denominator is 2n+1

For example

2nd term is 6/13

Where

  • 2(6)+1=13

Now

in the third term numerator is 8

Denominator:-

[tex]\\ \sf\longmapsto 2(8)+1=16+1=17[/tex]

Option A

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