Explore topic-wise InterviewSolutions in Current Affairs.

All RATIONAL numbers have MULTIPLICATIVE inverse except 0
hope it's should be CORRECT.

Here is your ANSWER
=4.20×0.67
=2.814
=2.81

[3x - 5Y = -1] × 1
[ x - y = -1] × 3

------------------------------

3x - 5y = -1
3x - 3y = -3
-__(+)__(+)

0-2y = 2
________

=> 2y = -2

=> y = -2/2

=> y = -1


Putting the VALUE of y in x-y = -1

=> x -(-1) = -1

=> x+ 1 = -1

=> x = -1-1

=> x = -2

x = -2
y = -1




I hope this will help you


-by ABHAY

The AMOUNT GIVEN by lender.
the amount is KNOWN as PRINCIPAL .

The answer is 151.. If you LIKE plz mark it as BRAINLIEST answer

I HOPE this ANSWER HELP you

Let , if possible 7^n ends with digits ZERO

As 7^n ends with DIGIT zero
=> 7^n must have factor 2 and 5 ----(i)

but according to fundamental theorem of arithmetic, it gaurantees that 7 ^n can have only factor as multiple of 7 ----(ii)

(i) and (ii) CONTRADICTS each other
Thus 7^n can never end with digit zero for any natural number n...

Hye

======================================================

this is a very nice QUESTION

the question is "can TWO number have 18 as their hcf and NUMBERS 380 as their lcm?"

so for solving this sum ,we MUST recall a property..............

→ lcm is a mutiple of hcf ←

here , we see that 380 is not multiple of 18

∴two no. cant have  18 as their hcf and numbers 380 as their lcm

==============================================

hope  it helps U........

Heya ✋

Let SEE your ANSWER !!!

Given that

Ist adjacent SIDE = 5cm

2nd adjacent SIDES = 6cm

Perimeter = ?

Solution

Perimeter of a parallelogram = 2(sum of adjacent sides)

= 2(5 + 6)

= 2 × 11

= 22m




Thanks :)))

A LINE has no beginning point or end point. IMAGINE it CONTINUING indefinitely in both directions.
We can illustrate that by  little arrows on both ends...
We can NAME a line using 2 ALPHABETICAL letters
Hope it helps you buddy

Heya!


Here is YR answer -----------


=> 6x² + 5X -6

=> 6x² + 9x - 4x - 6

=> 3x (2x+3) - 2 ( 2x + 3)

=> (2x+3) ( 3x-2)


Hope it hlpzzz....

The TOTAL STRENGTH of the SCHOOL,
(1905×2÷15)+1905
=>2159
hope it HELPS you.

A TRIANGLE is OBTUSE if and only if the DEGREE MEASURE of triangle is between 90° and 180°

Let, present age of binny is x YEARS

present age of AANSHI is (x-5) years

_____________,,,


After 20 years,

Age of binny= (x+20) years
Age of aanshi = (x-5+20) years
Age of aanshi = (x+15) years

Age of aanshi 5 years ago = (x-5-5) years
Age of aanshi 5 years ago = (x-10) years
________________________

According to the question,

(x+20) = 2(x-10)

x +20= 2X -20

20+20=2x-x

40= x

__________

Present age of binny= 40 years
Present age of aanshi = 40-5= 35 years




I HOPE this will help you



-by ABHAY

2 by 15 of the total were absent means 13 by 15 were present in the school.
In the given question the no. of present students is given that is 1950 
Means there are 15 total PARTS out of which 2 parts students are absent and 13 parts students are present
Let the total no. of the students be x
So we can use DIRECT variation for this,
Parts         No. of students 
  13              1950
   15                 x
∴13×x=1950×15
∴x=1950×15÷13
∴x=2250
So the  total no. of students are 2250.

A square +b square+c square =20
ab+bc+ca=3
then (a+b+c) WHOLE square =a square +b square +c square +2(ab+bc+ca)=20+2(3)=26
So, a+b+c=

4√7 is GREATER than √u

I HOPE this ANSWER HELP you

The ANSWER will be 9

HELLO MY DEAR FRIEND

PER ANNUM MEANS - 1 YEAR 

S.I = PRINCIPLE ×TIME× RATE /100.
S. I = 90000 × 1YEAR ×20%/100.
S.I = 900. 
THEREFORE, S.I( SIMPLE INTEREST = 900.)

I HOPE THIS WILL HELP'S U...............*-*

# ✌️SWETHAPAVS✌️ #

Let the speed of the stream be = u kmph
let the speed of the boat be = v kmph

speed upstream will be = v - u  kmph
speed downstream will be =  v + u  kmph

30 km  upstream in TIME duration  =   30 / (v - u)  HRS
44 km  down stream in time duration  =  44 / (v + u)  hrs

       44 / (v + u)  + 30 / (v -u)  = 10 hrs     --- (1)

Similarly,

      40 /(v - u)  + 55 / (v +u)  = 13 hrs         Multiply with 3/4:  
      30/(v-u) + 165 / 4(v+u) =    39/4        --- (2) 

Now (1) - (2)  =>    [44 - 165/4] / (v+u) = 10 - 39/4 = 1/4
                   =>     v + u = 11      --- (3)
SUBSTITUTE this in (1) to get: 
             44/11 + 30/(v-u) = 10
           =>  v - u = 30/6 = 5      --- (4)

Solving  (3) and (4) ,  we get :  v = 8 kmph    and  u = 3 kmph

X²-39x+7x-273
x(x-39)+7(x-39)
x=-7,39..

hey don't you have summer HOLIDAYS what are you doing??!!
and by the WAY which CLASS are you?

hope it helps please mark MINE the BRAINLIEST..

your ANSWER is WRONG answer is 60

The answer is given below :

Since, the difference between the digits of the NUMBER is 3, we consider the numbers as (x + 3) and x at tens and ones place respectively.
where (x + 3) - x = 3.

Then, the number is

= 10(x + 3) + x

= 10x + 30 + x

= (11x + 30)

When the digits are interchanged, the number is

= 10x + (x + 3)

= (11x + 3)

By the given condition,

ORIGINAL number + New number = 143

⇒ (11x + 30) + (11x + 3) = 143

⇒ 22X + 33 = 143

⇒ 22x = 143 - 33

⇒ 22x = 110

⇒ x = 110/22

⇒ x = 5

So, the digit at ones place is 5 and the digit is tens place is (5 + 3) = 8.

So, the numbers are 85 and 58.

Thank you for your question.

No.For EXAMPLE,√5,√2,√3,√7 ETC. That's all.

Can you TELL what you WANT.

I THINK it is UNCLEAR

The ANSWER of the SUM U ASKED is -6

Here that person spends 88 percent of his salary
Let the total salary of that person be 100 percent be x rs
In given QUESTION , that persons expenditure is 22000 which is given
It MEANS that his 88 percent salary is 22000
we need to know his total salary ,
For this we use direct variation
percentage          salary
     88                     22000
   100                       x
By doing CROSS multiplication,
∴88×x=100×22000
∴x=100×22000÷88
∴x=25000Rs.
∴That persons total salary is Rs.25000.