Important for :

1

2

C

Let Ram's investment be 100/-Then, Manu's investment

= 100x × | 90 | = 90/- |

100 |

And Pradeep's investment

= | 120 | × 90 = 108/- |

100 |

Ratio of Ram's investment : Ratio of Manu's investment : Ratio of Pradeep's investment = 100 : 90 : 108 = 50 : 45 : 54

∴ Investment made by Ram

= | 50 | × 14900 = Rs 5000/- |

149 |

Hence, option C is correct.

3

4

D

Saurabh’s investment = x, Sanjay’ investment = x × 75%,

Sanjay's investement is 80% of the Shubham’s investment (x × 75%)

Hence, Shubham’s investment = x × 75% ÷ 80%

Sanjay's investement is 80% of the Shubham’s investment (x × 75%)

Hence, Shubham’s investment = x × 75% ÷ 80%

Ratio of Saurabh : Sanjay : Shubham = x : x × 75% : x × 75% ÷ 80%

= x × 80% : x × 80% × 75% : x × 75%

= 16 : 12 : 15

Shubham’s profit = 10500 Rs.

= 10500 ÷ 15 × 43

= 30100 Rs.

Hence option D is correct.

Hence option D is correct.

5