Exercise 3C

### Solve the system of equations by using the method of cross multiplication:

Solution: The given equations may be written as: $2 x+y-35=0\dots \dots(i)$ $3 \mathrm{x}+4 \mathrm{y}-65=0 \quad \ldots \ldots(ii)$ Here $a_{1}=2, b_{1}=1, c_{1}=-35, a_{2}=3, b_{2}=4$ and...

### Solve the system of equations by using the method of cross multiplication: ,

Solution: The given equations may be written as: $\begin{array}{l} 2 x+5 y-1=0\dots \dots(i) \\ 2 x+3 y-3=0\dots \dots(ii) \end{array}$ Here $a_{1}=2, b_{1}=5, c_{1}=-1, a_{2}=2, b_{2}=3$ and...

### Ashwarya bought 496, Rs.100 shares at Rs.132 each, find: How much extra must Ashwarya invest in order to increase her income by Rs.7,200

Given, The nominal worth of each offer $=\text{ }Rs\text{ }100$ Market cost of each offer $=\text{ }Rs\text{ }132$ Number of offers purchased $=\text{ }496$ Assuming she needs to build her pay...

### Ashwarya bought 496, Rs.100 shares at Rs.132 each, find: (i) Investment made by her (ii) Income of Ashwarya from these shares, if the rate of dividend is 7.5%.

Given, (I) The nominal worth of each offer $=\text{ }Rs\text{ }100$ Market cost of each offer $=\text{ }Rs\text{ }132$ Number of offers purchased $=\text{ }496$ In this way, the speculation...

### By investing Rs.45,000 in 10% Rs.100 shares, Sharad gets Rs.3,000 as dividend. Find the market value of each share.

We realize that, Yearly pay from $1\text{ }offer\text{ }=\text{ }10%\text{ }of\text{ }Rs\text{ }100\text{ }=\text{ }Rs\text{ }10$ Given, the absolute pay\[~=\text{ }Rs\text{ }3000\text{ }\left(...