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Q:

# In each of the following questions, a question is followed by information given in them Statements I, II and III. You have to study the question along with the statements and decide the information given in which or the statements/ is necessary to answer the question. What is the cost of flooring the rectangular hall?I. Length and the breadth of the hall are in the ratio of 3:2II. Length of the hall is 48 m and cost of flooring is ₹ 850 Per sq.m.III. Perimeter of the hall is 160 m and cost of flooring is ₹ 850 per sq m

 A) I and II B) I and III C) Only III D) I and either II or III

Answer:

Explanation:

From I and II,
Length = 3x = 48 m
∴ x = 16
Breath = 2x = 32 m
Hence, Area of floor = 48 × 32
Cost of flooring = 48 × 32 × 850 = ₹ 1305600
From I and III, 2(l +b) = 160
2(3x + 2x) = 160
10x = 160
∴ x = 16
∴ Length = 3 × 16 = 48 m
Breadth = 2x = 32m
Cost of flooring = (48 × 32) × 850 = ₹ 1305600
Similarly, from II and III, we can find
l = 48 m
b = 32 m
and Total cost of flooring = ₹ 1305600

Q:

A certain amount of money at compound interest grows to ₹66,550 in 3 years and ₹73,205 in 4 years. The rate per cent per annum is:

 A) 9% B) 5% C) 11% D) 10%

Answer & Explanation Answer: D) 10%

Explanation:
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0 37
Q:

The greatest number which should be replace '*’ in the number 146*48 to make t divisible by 8 is:

 A) 8 B) 9 C) 2 D) 0

Answer & Explanation Answer: A) 8

Explanation:
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0 15
Q:

The following table shows the monthly salaries (in ₹) of 50 families.

How many families have a monthly salary less than ₹40,000?

 A) 46 B) 9 C) 27 D) 18

Answer & Explanation Answer: C) 27

Explanation:
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0 15
Q:

In the figure, Two circles with centres P and Q touch externally at R. Tangents AT and BT meet the common tangent TR at T. If AP = 6 cm and PT = 10 cm, then BT = ?

 A) 6 cm B) 8 cm C) 10 cm D) 12 cm

Answer & Explanation Answer: B) 8 cm

Explanation:
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Q:

The following table shows the income(in rupees) for a particular month, together with their source, in respect of 5 employees (A, B, C,D and E).

How many employees got more arrears than the average arrears received by all the employees?

 A) 4 B) 1 C) 3 D) 2

Answer & Explanation Answer: C) 3

Explanation:
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0 10
Q:

The heights of some girls in a school were noted and the data obtained are as shown in the table.

How many girls have a height of 135 cm or more but less than 150 cm?

 A) 88 B) 35 C) 80 D) 64

Answer & Explanation Answer: D) 64

Explanation:
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Q:

The value of is:

 A) 174 B) 5 C) 2 D) 7-2

Answer & Explanation Answer: B) 5

Explanation:
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Q:

Solve the below equation.

 A) 94 B) 65 C) 214 D) 215

Answer & Explanation Answer: C) 214

Explanation:
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