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Q:

There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ?

A) 24 B) 39
C) 85 D) 74

Answer:   D) 74



Explanation:
Q:

ΔXYZ is right angled at Y. If cosX = 3/5, then what is the value of cosecZ ?

A) 3/4 B) 5/3
C) 4/5 D) 4/3
 
Answer & Explanation Answer: B) 5/3

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Q:

If the cost price of 20 books is the same as selling price of 25 books, then the loss percentage is

A) 20 B) 25
C) 22 D) 24
 
Answer & Explanation Answer: A) 20

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Q:

The railway fares of air conditioned sleeper and ordinary sleeper class are in the ratio 4:1. The number of passengers travelled by air conditioned sleeper and ordinary sleeper classes were in the ratio 3:25. If the total collection was Rs. 37,000, how much did air conditioner sleeper passengers pay?

A) Rs. 15,000 B) Rs. 10,000
C) Rs. 12,000 D) Rs. 16,000
 
Answer & Explanation Answer: C) Rs. 12,000

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Q:

While selling a shirt, a shopkeeper gives a discount of 7%. If he gives discount of 9% he earns Rs. 15 less on profit. The market price of the shirt is :­

A) 712 B) 787
C) 750 D) 697
 
Answer & Explanation Answer: C) 750

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Q:

A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is

A) 7 cm B) 9 cm
C) 12 cm D) 14 cm
 
Answer & Explanation Answer: D) 14 cm

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Q:

Koushik can do a piece of work in X days and Krishnu can do the same work in Y days. If they work together, then they can do the work in

A) (X+Y) days B) 1x+y days
C) xyx+y days D) x+yxy days
 
Answer & Explanation Answer: D) x+yxy days

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Q:

If a - b = -5 and a2+b2=73, then find ab.

A) 35 B) 14
C) 50 D) 24
 
Answer & Explanation Answer: D) 24

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Q:

Which of the following is correct?

A) (6x + y)(x - 6y) = 6x^2+ 35xy - 6y^2 B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2
C) (6x + y)(x - 6y) = 6x^2- 37xy - 6y^2 D) (6x + y)(x - 6y) = 6x^2+ 37xy - 6y^2
 
Answer & Explanation Answer: B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2

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