1 .

In a class the average age of 25 students is 12 years. When five students left the class the average age became 11 years. What is the average age of the students who left the class ?

A.  12 years
B.  10 years
C.  14 years
D.  16 years
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2 .

The ratio of the age of the father to that of the son is 2 : 1 . 5 years earlierthe ratio was 11:5. What is the the present age of the son ?

A.  20 years
B.  25 years
C.  30 years
D.  35 years
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3 .

If the sum of three consecutive even numbers is three less than 30% of 150, what is the middle number ?

A.  10
B.  12
C.  14
D.  16
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4 .

A and B entered into a partnership with their capital in the ratio 7 : 5. At the end of 10 months A withdraws his capital. If they receive the profits in the ratio 7 : 2, find how long B's capital was used.

A.  4 months
B.  8 months
C.  12 months
D.  10 months
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5 .

If the annual decreases in the population of a town is 4% and the present population is 8 lakhs, what will be the population after two years

A.  713510
B.  72680
C.  737280
D.  747870
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6 .

Direction (Q. 6 - 10) : What should come in the place of (?) in the following number series ?

1, 3, 9, 21, 41, ?

A.  61
B.  71
C.  66
D.  76
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7 .

50, 97, 140, 181, 218, 249, 278, ?

A.  291
B.  294
C.  298
D.  301
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8 .

1, 3, 6, 10.5, 17.25, ?

A.  21.5
B.  24.325
C.  27.375
D.  29.455
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9 .

4, 13, 21, 47, 89, 183, 361, ?

A.  577
B.  627
C.  677
D.  727
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10 .

1, 2.5, 5, 8.5, 14, 21.5, 33, 46.5, 64, ?

A.  83.5
B.  84.5
C.  85.5
D.  86.5
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