Raghu wants to plough his 4 …

Raghu wants to plough his 4 hectares of agricultural land for transplantation of paddy. It needs ploughing three times for better production of crop. For a tractor, fixed hiring charge is Rs 300(for driver) and rates for ploughing per acre for the first round, second round and third round are given in the following table. [ 1 hectare = 2.5 acres approx.] Sl.No. Slab of areas Rate of first time ploughing Rate of second time ploughing Rate of third time ploughing 1. Up to 2 acres Rs. 2300/acre Rs. 1600/acre Rs. 1400/acre 2. More than 2 acres to 4 acres Rs. 2200/acre Rs. 1500/acre Rs. 1300/acre 3. Above 4 acres Rs. 2000/acre Rs. 1400/acre Rs. 1200/acre 1.How much amount does he need to pay to make the field ready for transplantation by ploughing thrice? 2.If area of the field is x hectare (where x > 2) and the amount to be paid is y,write a relation between x and y. 3. Why is the rate of ploughing the field for the third time the least in the slab?

Ndovdgdhveieb

sides of a triangle are in the ratio of 12:17:25 and its perimeter is 540cm. find its area

X³-12x²+39x-28

3√2×4√2×12√32

2x+5y

Prove that the sum of all the three interior angles of a triangle is 180 degree

What is 38747484±393884747

Cost of a pen is two and half times the cost of a pencil. Express the situation as a linear equation in two variables

Ch-1 introduction

The polynomial of the type ax²+bx+c,a=0 is called