Q:

A) Rs.6000 | B) Rs.4500 |

C) Rs.7500 | D) Rs.5000 |

Answer: D) Rs.5000

Explanation:

Explanation:

Let a, b and c be the amounts invested in schemes X, Y and Z respectively. Then,

As we know:

Simple interest (S.I.) = PTR/100

(a × 10 × 1/100) + (b × 12 × 1/100) + (c × 15 × 1/100) = 3200

= 10a + 12b + 15c = 320000 .........(1)

Now, c = 240% of b = 12b/5 .........(2)

And, c = 150% of a = 3a/2 => a = 2/3 c = (2 × 12)b/(3 × 5) = 8b/5 .......(3)

From (1), (2) and (3), we have

16b + 12b + 36b = 320000 => 64b = 320000 => b = 5000

∴ Sum invested in Scheme Y = Rs.5000.

2
244

Q:

A) 5 : 6 | B) 8 : 9 |

C) 3 : 4 | D) 4 : 5 |

3
201

2
246

Q:

A) ₹ 11,500 | B) ₹ 11,400 |

C) ₹ 11,000 | D) ₹ 11,600 |

1
1612

7
425

Q:

A) increase by 2.8% | B) decrease by 1.8% |

C) increase by 1.8% | D) decrease quadrilateral by in 2.8% |

0
314

2
360

Q:

A) 1623°° | B) 20°° |

C) 80°° | D) 8313°° |

3
286