A) 144% | B) 40% |

C) 44% | D) 72.8% |

Explanation:

The surface area of a cube = =

New Surface area =

%

A) 160 | B) 120 |

C) 140 | D) 180 |

Explanation:

Given total number of cows = k

Now, 1st son share = k/2

2nd son share = k/4

3rd son share = k/5

4th son share = 9

(k) + (k/4) + (k/5) + 9 = k

=> k - (19k/20) = 9

=> (20k-19k)/20 = 9

=> k = 180.

A) 11.11% decrease | B) 21.11% increase |

C) 11.11% increase | D) 21.11% decrease |

Explanation:

If earlier he is getting Rs. 1 per hr and working for 1 hr, income = Rs. 1

Now he is getting Rs 1.3333 per hr and working for 0.66667 hrs

Then income for 0.66667 hrs = Rs. 0.8889.

If payment per hr is increased by 33.33 % and working hours dereased by 33.33%, then 11.11 % decrease in income.

A) 426 | B) 428 |

C) 415 | D) 432 |

Explanation:

There are 600 Kabaddi players

4% wear knee band on one leg

Remaining players = 600 x 0.96 = 576

Of the remaining, 25% wear knee bands on both leg

and Of the remaining, 75% do not wear knee bands .

So players not wearing knee bands = 0.75 x 576 = 576 x 3/4 = 144 x 3 = 432.

A) 9 | B) 10 |

C) 11 | D) 12 |

Explanation:

Given the company has 8 SD + 6 SRP + 7 IN = 21 cars + 'x' small cars.

Given SD makes 1/4 th of the total fleet.

=> 8 = 1/4 (21 + x)

=> 32 = 21 + x

=> x = 11

Therefore, the company has 11 small cars.

A) 1124 | B) 1420 |

C) 1345 | D) 1250 |

Explanation:

Let initially 'X' ticket has been sold.

So now in 2nd week 20% increases, so

=> X x 120/100

In 3rd week 16% increases, so

=> X x (120/100) x (116/100)

In 4th week 20% decrease, so

=> X x (120/100) x (116/100) x (80/100) = 1392

X = 1250.