### Discussion :: Chain Rule - General Questions (Q.No.2)

Miyyapuram said: (Jan 18, 2011) | |

for x metres the cost is drupees den x------>d y------>? den y*d/x=ans(cross multiply) |

Divya said: (Jul 16, 2011) | |

If the cost of x meters is d. then cost of one meter will be d/x. then if we have to find the cost of y meters we have to multiply the y with cost for one meter. thus it is y*d/x. |

Deepa said: (Sep 10, 2012) | |

Cost of x meters is d. Cost of 1 meters is d/x. Then cost of why meters is d*y/x. |

T.Rajesh said: (Sep 22, 2012) | |

for X:d::Y:p then p is Xp =Yd p =Yd/X |

Anil said: (Nov 6, 2013) | |

x meters--->d rupees. For 1 meter, we get d/x. For y meters simply multiply d/x with y. |

Parameswaran.G said: (Dec 21, 2013) | |

We known X and D, Then we need Y meters of wire. Let as, WE GET ANSWER =(D/X)* Y. |

Rajini said: (Apr 4, 2015) | |

We know the cost of x rupees is d meters cost of one meter is d/x cost of y meters is d/x*y. |

Kharinagendra said: (Apr 28, 2015) | |

X meters.....d rupees. Y meters......? Then cross multiplication yd/x. |

Manikandan said: (Jul 31, 2015) | |

We know cost of x is d then y is using matrix multiplication format. |

Nikhil Yamalwar said: (Feb 20, 2016) | |

X/d = y/? suppose ? = p, then cross multiplication. You will get ans: x*p = yd. P = (yd/x). |

Sundaresh said: (Aug 29, 2016) | |

x = 5 meters d = 10rupees y = 7 then d = ? 10/5 = 2; 2 * 7 = 14. How to get this mean d/x *y? |

Chandrakala said: (May 26, 2019) | |

According to me, the answer is xy/d. |

Mayank Kumar said: (Jul 3, 2020) | |

Thanks everyone for explaining. |

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