Wipro Company Numerical Ability Ratio and Proportion

Two vessels A and B contain petrol and diesel in the ratio 7 : 5 and 17 : 7 respectively. In what ratio mixtures from A & B must be mixed to get a new mixture containing petrol and diesel in the ratio 5 : 3 ?

a. 2 : 1
b. 3 : 2
c. 1 : 2
d. 2 : 3
e. 3 : 1

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Wipro Other Question

In what proportion must walnut at Rs. 62/kg be mixed with walnut at Rs. 72/kg in order to obtain a mixture worth Rs. 65/ kg ?

a. 3: 1
b. 5 :3
c. 6: 7
d. 7: 3 The difference between a two digit number and the number obtained by interchanging the digit ' s is 27. Find the difference of the two digits of the number ?

a. 5
b. 4
c. 3
d. 2