Q. Two numbers are in the ratio 5 : 7. If the first number is 20, then the second number will be -
1) 8
2) 22
3) 28
4) 18
Q. What should replace * in the number 94*2357, so that number is divisible by 11?
1) 1
2) 7
3) 8
4) 3
Q. The mean of first twenty positive even numbers is -
1) 20
2) 18
3) 17
4) 21
Q. Two variables y and x are related as y = 5x + 4. The arithmetic mean of x is 10. Arithmetic mean of y will be -
1) 50
2) 54
3) 29
4) 46
Q. The diagonals of a rhombus are 32 cm and 24 cm. Its perimeter will be -
1) 50 cm
2) 60 cm
3) 70 cm
4) 80 cm
Q. A shopkeeper marks the price of an article 20% above its cost price. He offers some discount on the marked price and gains a profit of 8%. Rate of discount is -
1) 8%
2) 10%
3) 12%
4) 15%
Q. Seventeen candidates appeared in an examination. The marks off the candidates who failed in the examination are 10, 9, 6, 7, 8, 8, 7, 5, 4, 6. The median of marks of all seventeen candidates is -
1) 6
2) 7
3) 9
4) None of the above
Q. The radius of a solid sphere of a metal is 3 cm. How long wire of diameter 4 mm can be drawn from it?
1) 8.8 meter
2) 9.0 meter
3) 9.6 meter
4) 9.1 meter
Q. A rectangular field is 112 meter long and 62 meter broad. A cubical tank of edge 6 meter is dug at each of the four comers of the field and the soil so removed is evenly spread on the remaining field. Find the rise in the level of the field.
1) 13.13 cm
2) 11.9 cm
3) 12.7 cm
4) 14.24 cm
Q. If (x - 1) and (x + 1) are two factors of the polynomial x6 - 1, then its other factors are -
1) (x2 + 1), (x2 + x + 1)
2) (x2 + 1), (x2-x-1)
3) (x2 - x + 1), (x2 + x + 1)
4) (x2 - x - 1), (x2 + x - 1)
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