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1. A, B, C rent a pasture. A puts 10 oxen for 7 months, B puts 12 oxen for 5 months and C puts 15 oxen for 3 months for grazing. If the rent of the pasture is Rs. 175, how much must C pay as his share of rent?

Rs.45

Rs.50

Rs.55

Rs.60

None of these

2. A letter lock consists of 4 rings, each ring contains 9 non-zero digits. This lock can be opened by setting a 4 digit code with the proper combination of each of the 4 rings Maximum how many codes can be formed to open the lock?

4^{9}

9p4

9^{4}

Data inadequate

3. A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

3/4

4/7

1/8

3/7

4. The ratio between the present ages of P and Q is 6: 7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years?

3 : 4

3: 5

4: 3

7: 8

5. I gain 70 paisa on Rs.70. My gain percent is

0.1%

1%

7%

10%