In what ratio must a grocer mix two varieties of tea...

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In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

A. 3 : 2

B. 3 : 4

C. 3 : 5

D. 4 : 5

Answer: Option A

Solution(By Examveda Team)

S.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10%
C.P. of 1 kg of the mixture = Rs. $$\left( {\frac{{100}}{{110}} \times 68.20} \right)$$ = Rs. 62
By the rule of alligation, we have:
Alligation mcq solution image

∴ Required ratio = 3 : 2

This Question Belongs to Arithmetic Ability >> Alligation

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Comments ( 1 )

Ankit Upadhyay :

6 years ago

Given 110%=68.20
So 100%=X (assume)
After Cross multiplication we get X=62.
Now applying mixture concept
60 65
62
(65-62) (62-60)
=3 =2

There fore Ratio is =3:2

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