Mock Test -7

1. Shobhatai purchased a scooter for Rs. 55,000. If its value decreases by 8% per year, how much amount will she get if she sells it after 2 years ?

1. Rs. 46,552
2. Rs. 64,152
3. Rs. 61,452
4. Rs. 43,525

Explanation:

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2. The frequency table of the heights of 20 children in a class is given below. Find the mean of their height.

Height (in cm)	Frequency
151	7
153	4
155	6
157	3

1. 154 cm
2. 153.5 cm
3. 153 cm
4. 154.5 cm

Explanation:

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3. A pit 8 m long, 5 m broad and 1.5 m deep is dug in the ground. The soil so dug is evenly spread over a rectangular plot 25 m long and 16 m broad. Find the thickness of the layer of the soil spread over the rectangular plot. (Select two correct alternatives)

1. 0.15 m
2. 15 m
3. 0.015 m
4. 1.05 m

Explanation:

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4. Which term should be added to the algebraic expression \[64x^{2}+\frac{y^{2}}{25}\] to make it a perfect square. (Select two correct alternatives)

1. \[\frac{16}{5}xy\]
2. \[-\frac{16}{5}xy\]
3. \[\frac{+8}{5}xy\]
4. \[-\frac{16}{5}\frac{x}{y}\]

Explanation:

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5. Find the value of \[\frac{0.36\times 0.27\times0.001}{0.06\times0.03\times0.1}=?\](No answer)

1. 5.4
2. 5.04
3. 54
4. 540

Explanation:

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6. The length of the diagonal of a rhombus is 24 cm. If the side of the rhombus is 13 cm, find the length of the other diagonal.

1. 5 cm
2. 10 cm
3. 13 cm
4. 12 cm

Explanation:

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7. Anuradha deposited Rs. 15,000 in a bank for 3 years at simple interest. If she received Rs. 24,000 at the end of the period, find the rate of simple interest.

1. 20 p.c.p.a.
2. 15 p.c.p.a.
3. 22 p.c.p.a.
4. 25 p.c.p.a.

Explanation:

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8. Which of the following statements is true ?
(A)Square is a rectangle
(B)Rectangle is a parallelogram
(C)Square is a parallelogram
(D)Rhombus is a square
(Select two correct alternatives)

1. (A) and (B) are true
2. (B) and (C) are true
3.(A), (B), (C), (D) are true
4. (C) and (D) are true

Explanation:

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9. The curved surface area of a cone is 204.1 sq.cm. Radius of its base is 5 cm. Find the perpendicular height of the cone. \[(\pi =3.14)\]

1. 5cm
2. 12cm
3. 13cm
4. 40.8cm

Explanation:

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10. Which polynomial should be added in\[3x^{3}-2x^{2}+3\] to get the polynomial \[3x^{2}+4\: ?\]

1. \[3x^{3}+5x^{2}+1\:\]
2. \[3x^{2}-5x^{}+1\:\]
3. \[-3x^{3}+5x^{2}+1\:\]
4. \[-3x^{3}-5x^{2}+1\:\]

Explanation:

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