55
Q:

# If 25a + 25b = 115, then what is the average of a and b?

 A) 4.6 B) 3.4 C) 2.5 D) None of these

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

Explanation:

0 0
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

Explanation:

0 9
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

Explanation:

0 0
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

Explanation:

0 1
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

Explanation:

0 1
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

Explanation:

0 1
Q:

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

 A) 35 B) 14 C) 50 D) 24

Explanation:

0 0
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

Explanation: