## Lakshya Education MCQs

Question: If 20% of (A + B) = 50% of B, then value of $$\frac{2A - B}{2A + B}$$   is :
Options:
 A. $$\frac{1}{2}$$ B. $$\frac{1}{3}$$ C. $$\frac{1}{41}$$ D. 1

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## More Questions on This Topic :

Question 1. The average of marks obtained by 100 candidates in a certain examination is 30. If the average marks of passed candidates is 35 and that of the failed candidates is 10, what is the number of candidates who passed the examinations ?
1.    60
2.    70
3.    80
4.    90
Question 2. 18% of which number is equal to 12% of 75 ?
1.    50
2.    100
3.    2
4.    $$\frac{3}{2}$$
Question 3. If 90% of A = 30% of B and B = 2x% of A, then the value of x is :
1.    450
2.    400
3.    300
4.    150
Question 4. Ticket for all but 100 seats in a 10000 seat stadium were sold. Of the ticket sold, 20% were sold at half price and the remaining tickets were sold at the full price of Rs. 20. The total revenue from the ticket sales, (in Rs.) was :
1.    158400
2.    178200
3.    180000
4.    198000
Question 5. In 2 kg mixture of copper and aluminium, 30% is copper. How much aluminium powder should be added to the mixture so that the quantity of copper becomes 20% ?
1.    900 gms
2.    800 gms
3.    1000 gms
4.    1200 gms