Question

sk
has
thrice
five
rupee
notes
than
10
rupee
notes
Ramesh
has
.
The
total
ount
with
them
is
300.
How
many
five
rupee
notes
Rasik
has
with
him
?
1
2
3
4
124 (2)
4
36 (2) 30
(3) 12​

Answer 1

Answer:

This implies that

x2+2ax=4x−4a−13

or

x2+2ax−4x+4a+13=0

or

x2+(2a−4)x+(4a+13)=0

Since the equation has just one solution instead of the usual two distinct solutions, then the two solutions must be same i.e. discriminant = 0.

Hence we get that

(2a−4)2=4⋅1⋅(4a+13)

or

4a2−16a+16=16a+52

or

4a2−32a−36=0

or

a2−8a−9=0

or

(a−9)(a+1)=0

So the values of a are −1 and 9.

Answer 2

Answer:

Right from childhood, Santosh was not content with a traditional way of life and felt that if she chose a correct and a rational path, the others around her had to change, not she. She wanted to chart her own course in life, rather than following the age-old customs and traditions.