2
Q:

A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point ?

A) 26 minutes and 18 seconds B) 42 minutes and 36 seconds
C) 45 minutes D) 46 minutes and 12 seconds

Answer:   D) 46 minutes and 12 seconds



Explanation:

L.C.M. of 252, 308 and 198 = 2772.

 

So, A, B and C will again meet at the starting point in 2772 sec. i.e., 46 min. 12 sec.

Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 81 B) 125
C) 64 D) 198
 
Answer & Explanation Answer: D) 198

Explanation:
Report Error

View Answer Report Error Discuss

1 337
Q:

Expand and simplify (2x + 5)2 *(4x ­- 1) -­ (3x3 - 16x2 + 25x -­ 21)

A) 13x3 + 92x2 -­ 55x + 4 B) 13x3 -­ 92x2 -­ 55x -­ 4
C) 13x3 + 92x2 + 55x -­ 4 D) 13x3 -­ 92x2 + 55x + 4
 
Answer & Explanation Answer: C) 13x3 + 92x2 + 55x -­ 4

Explanation:
Report Error

View Answer Report Error Discuss

0 288
Q:

A cone is hollowed out of a solid wooden cube of side 7 cm. The diameter and height of the cone is same as the side of the cube. What is the volume of the remaining cube?

A) 253.17 cubic cms B) 228.84 cubic cms
C) 143.26 cubic cms D) 257.68 cubic cms
 
Answer & Explanation Answer: A) 253.17 cubic cms

Explanation:
Report Error

View Answer Report Error Discuss

0 269
Q:

Reflection of the point (2,-4) in the origin is

A) (2,4) B) (-2,-4)
C) (2,-4) D) (-2,4)
 
Answer & Explanation Answer: D) (-2,4)

Explanation:
Report Error

View Answer Report Error Discuss

1 332
Q:

By increasing the price of entry ticket to a fair in the ratio 5:7, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?

A) increased in the ratio 55:63 B) decreased in the ratio 63:55
C) increased in the ratio 45:77 D) decreased in the ratio 77:45
 
Answer & Explanation Answer: A) increased in the ratio 55:63

Explanation:
Report Error

View Answer Report Error Discuss

0 382
Q:

Asif is twice as good as workman as Bashir and together they finish a piece of work in 30 days. In how many days will Asif alone finish the work?

A) 90 B) 45
C) 60 D) 75
 
Answer & Explanation Answer: B) 45

Explanation:
Report Error

View Answer Report Error Discuss

0 392
Q:

What smallest number should be added to 2401 so that the sum is completely divisible by 14 ?

A) 8 B) 7
C) 4 D) 5
 
Answer & Explanation Answer: B) 7

Explanation:
Report Error

View Answer Report Error Discuss

1 420
Q:

What is the altitude of an equilateral triangle whose side is 12 cm?

A) 6√3 cm B) 3√3 cm
C) 6√2 cm D) 4√2 cm
 
Answer & Explanation Answer: A) 6√3 cm

Explanation:
Report Error

View Answer Report Error Discuss

0 426