**Q3. If 20% of (P + Q) = 50% of (P – Q), then P : Q = ?**

(a) 5 : 7

(b) 7 : 5

(c) 7 : 3

(d) 7 : 8

**Q5. If A = 1/4 B and B = 1/2 C, then find the value of A : B : C.**

(a) 8 : 4 : 1

(b) 4 : 2 : 1

(c) 1 : 4 : 8

(d) 1 : 2 : 4

(e) None of these

**Q7. If the average of eight consecutive even numbers be 93, then the greatest number among them is**

(a) 86

(b) 98

(c) 100

(d) 102

**Q8. The average of 11 results in 50. If the average of the first six results in 49 and that of the last six is 52, the sixth result is**

(a) 48

(b) 50

(c) 52

(d) 56

**Q10. A tradesman marks his goods at 20% above the cost price but allows purchasers a discount of 5%. What profit percent does he make?**

(a) 14%

(b) 18%

(c) 16%

(d) 19%

**Q11. A man sells his typewriter at 5% loss. If he sells it for Rs. 80 more, he gain 5%. The cost price of typerwriter is**

(a) Rs. 1600

(b) Rs. 1200

(c) Rs. 1000

(d) Rs. 800

**Q12. Two types of tea costing Rs. 180 and Rs. 280/kg should be mixed in the ratio so that the mixture obtained, sold at Rs. 320/kg to earn a profit of 20% is**

(a) 1 : 13

(b) 2 : 13

(c) 3 : 13

(d) 4 : 13

**Q13. On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. the cost price (in Rs.) of a ball is**

(a) 45

(b) 50

(c) 55

(d) 60

**Q14. In a farm there are cows and hens. If heads are counted there are 180, if legs are counted there are 420. The number of cows in the farm is**

(a) 150

(b) 30

(c) 130

(d) 50

**Q15. The speeds of A and B are in the ratio 3 : 4. A takes 20 minutes more than B to reach a destination. In what time does A reach the destination?**

(a) 4/3 hours

(b) 2 hours

(c) 5/3 hours

(d) 8/3 hours

**SOLUTIONS**

**S7. Ans.(c)**

**Sol.**(a+ (a + 1) + (a + 3) + (a + 5) + (a + 7))/8 = 93

**S8. Ans.(d)**

**Sol.**Sixth result = 49 × 6 + 52 × 6 – 50 × 11

**S9. Ans.(b)**

**Sol.**Given that a = 20, b = 15

**S13. Ans.(d)**

**Sol.**SP of a ball = 720/17

**S14. Ans.(b)**

**Sol.**Let the number of cows and hens in the farm be x and y, respectively

**S15. Ans.(a)**

**Sol.**Let the time taken by A be x hrs.