A) 60 | B) 52 |

C) 45 | D) 35 |

Explanation:

Let the total applicants be 100

Then, 20% got 85 marks

i.e 20 85 = 1700

and 25% got 95 marks

i.e 25 95 = 2375

Now, the remaining applicants are 55 and let the average marks scored by them be x.

2375 + 1700 + 55 x = 60 100

6000 - 4075 = 55x

55x=1925

x=

x=35.

A) 101 | B) 112 |

C) 104 | D) 120 |

A) 14 2/5 % | B) 23 1/3 % |

C) 20 % | D) 16 % |

Explanation:

K = 100 L = 130

130------ 30

100------- ? => 23 1/13 %

A) 2 or 60% | B) 4 or 20% |

C) 6 or 10% | D) 8 or 5% |

Explanation:

20 x 55 x 66 = L x 65 x 70

Here L = 72,600/4550 = 15.95 =~ 16

Reduction is 20-16 = 4

which is 20% reduction.

A) Rs. 1,24,000 | B) Rs. 1,44,000 |

C) Rs. 1,32,000 | D) Rs. 1,62,000 |

Explanation:

Value of Maruti Van, V1 = Rs. 1,96,000

Rate of depreciation, r = 14(2/7)% = 100/7%; Time, t = 2 years

Let V2 is the value after depreciation.

V2 =

V2 =

V2 = 196000(6/7)(6/7)

V2 = (196000x36)/49 = Rs. 1,44,000.

A) 96 % | B) 4 % |

C) 97 % | D) 3 % |

Explanation:

Imension of the duster is assumed as 5x5x7 cm3

Volume of the duster below the water layer

= volume of water increased

= πxrxrxh = 3.14×52×2.14 ≈ 168 cm3

Total volume of the duster = 5×5×7 = 175 cm3

Percentage of the duster part below the layer = 168×100/175 = 96%

Percentage of the duster part above the layer = 4%