A) 28 | B) 29 |

C) 31 | D) 35 |

Explanation:

Clearly, we have :

A = B - 3 ...(i)

D + 5 = E ...(ii)

A+C = 2E ...(iii)

B + D = A+C = 2E ...(iv)

A+B + C + D + E=150 ...(v)

From (iii), (iv) and (v), we get: 5E = 150 or E = 30.

Putting E = 30 in (ii), we get: D = 25.

Putting E = 30 and D = 25 in (iv), we get: B = 35.

Putting B = 35 in (i), we get: A = 32.

Putting A = 32 and E = 30 in (iii), we get: C = 28.

A) 6 | B) 10 |

C) 9 | D) 30 |

Explanation:

175760 =2³ x 2 x 5 x 13³

= 2³ x 2 x 5 x 13³

To make perfect cube, it must be divided by 2 x 5 = 10

A) 27 | B) 24 |

C) 21 | D) 42 |

Explanation:

Let the numbers be 3x, 3x + 3 and 3x + 6.

Then,

3x + (3x + 3) + (3x + 6) = 72

9x = 63

x = 7

Largest number = 3x + 6 = 27.

=> Second largest number = 27 - 3 = 24

A) 188 million | B) 166 2/3 million |

C) 192 3/4 million | D) None |

Explanation:

5% - 2% = 3%

=> 3% ------ 5 million bags

100% ---- ?

=> 166 2/3 million bags.

A) x > y < z | B) x < y < z |

C) x > y > z | D) z < x < y |

Explanation:

x = √8 - √7 = 1/(√8 + √7) and y = √6 - √5 = 1/(√6 + √5) and z = √10 - 3 = 1/(√10 + 3)

As (√8 + √7) > (√6 + √5), (√8 - √7) < (√6 - √5)

As (√10 + 3) > (√8 + √7) > (√6 + √5)

z < x < y.

A) 12 & 7 | B) 13 & 8 |

C) 15 & 10 | D) 14 & 9 |