Question

in 100m race reena beats Aarti by 10m and in same race aarti beats meenal by 30m by what distance does reena beat Meena?
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Answer 1

Step-by-step explanation:

Total race is = 100 m

Reena beats by Aarti = 10 m

Aarti beats by meena = 30 m

Reena beat by meena = 100 - 30+10

= 40

Answer 2

Let consider Rina goes= 100 m,

Then Aarti goes            =90 m.

Now if Aarti goes          = 100 m,

then Meenal goes         = 70 m.  (  in same race aarti beats meenal by 30m) given

If Aarti goes                  =  70 m ,

then Meenal goes        = 70×70/100 = 49m.

Therefore, When Rina goes 100 m,

then Meenal goes 49m .

So Rina beats Meena by( 100 - 49)m = 51m

Hence Rina beats Meenal by 51m.

Ans :- Rina beats Meenal by 51m.

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