Register

NIELIT 2019 Feb Scientist C - Section D: 2

• recategorized by
683 views

1 Answer

0 votes
0 votes

Answer is C

infinitely many solns, so $\frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}}=\frac{c_{1}}{c_{2}}$

$\frac{2}{4}=\frac{-(a-4)}{-(a-1)}=\frac{2b+1}{5b-1}$

On solving, we get a = 7 and b = 3

So, (a+b) = 7 + 3 = 10

User Avatar
Voting & Accepting an answer helps improve the community
← PreviousNext →
← Previous in categoryNext in category →

Related questions

1 votes
1 votes
0 answers
1
Lakshman Bhaiya asked Apr 3, 2020
492 views
NIELIT 2019 Feb Scientist D - Section D: 25
In the following system of equations $2^{y-x} \left(x+y \right)=1$ & $\left(x+y \right)^{x-y}=2$ the value of $xy$ is : $\frac{1}{2}$ $\frac{3}{4}$ $\frac{1}{4}$ $1$
In the following system of equations $2^{y-x} \left(x+y \right)=1$ & $\left(x+y \right)^{x-y}=2$ the value of $xy$ is :$\frac{1}{2}$$\frac{3}{4}$$\frac{1}{4}$$1$
0 votes
0 votes
2 answers
2
Lakshman Bhaiya asked Apr 1, 2020
1,021 views
NIELIT 2019 Feb Scientist C - Section D: 1
The minute hand is $10$ cm long. Find the area of the face of the clock described by the minute hand between $9$ a.m and $9:35$ a.m. ${183.3\ cm^{2}}$ ${366.6\ cm^{2}}$ ${244.4\ cm^{2}}$ ${188.39\ cm^{2}}$
The minute hand is $10$ cm long. Find the area of the face of the clock described by the minute hand between $9$ a.m and $9:35$ a.m.${183.3\ cm^{2}}$${366.6\ cm^{2}}$${24...
0 votes
0 votes
2 answers
3
Lakshman Bhaiya asked Apr 1, 2020
931 views
NIELIT 2019 Feb Scientist C - Section D: 3
The line $x+y=4$ divides the line joining $\text{(-1,1) & (5,7)}$ in the ratio $\lambda : 1$ then the value of $\lambda$ is: $2$ $3$ $\dfrac{1}{2}$ $1$
The line $x+y=4$ divides the line joining $\text{(-1,1) & (5,7)}$ in the ratio $\lambda : 1$ then the value of $\lambda$ is:$2$$3$$\dfrac{1}{2}$$1$
0 votes
0 votes
1 answer
4
Lakshman Bhaiya asked Apr 1, 2020
726 views
NIELIT 2019 Feb Scientist C - Section D: 4
Which of the following statement is false? ... Statement(iii) Statement(ii) Statement(iv) Statement(i)
Which of the following statement is false?$\begin{array}{ll} \text{Statement(i)} : & \dfrac{501}{25} \text{ is a terminating decimal.} \\ \text{Statement(ii)} : & \dfrac{...
0 votes
0 votes
1 answer
5
Lakshman Bhaiya asked Apr 1, 2020
797 views
NIELIT 2019 Feb Scientist C - Section D: 5
The value of $\dfrac{1}{6}+\dfrac{1}{12}+\dfrac{1}{20}+ \dots \dots \dots+\dfrac{1}{90}$ is: $\dfrac{1}{5}\\$ $\dfrac{2}{5} \\$ $\dfrac{3}{5} \\$ $1$
The value of $\dfrac{1}{6}+\dfrac{1}{12}+\dfrac{1}{20}+ \dots \dots \dots+\dfrac{1}{90}$ is:$\dfrac{1}{5}\\$$\dfrac{2}{5} \\$$\dfrac{3}{5} \\$$1$
Link Copied!