164k views
2 votes
Help me
ans should be well explained ​

Help me ans should be well explained ​-example-1
User UrK
by
3.7k points

1 Answer

3 votes

#1

  • Let the lowest mark be x

ATQ


\\ \sf\longmapsto 2x+7=87


\\ \sf\longmapsto 2x=87-7=80


\\ \sf\longmapsto x=(80)/(2)


\\ \sf\longmapsto x=40

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:-


\\ \sf\longmapsto 2(8)+1=16+1=17

Option A

User Vlad Rusu
by
2.9k points