Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Whats is proprtional number

Answer»




In today’s post we are going to work with proportions. Today, we’ll start by looking at PROBLEMS with proportionalnumbers.

In order to solve problems with proportional numbers, the first step is to know the concepts of ratio and proportion.

Ratio

A ratio is the quotient of two numbers or quantities that are being compared to each other and it is expressed as a fraction. In other words, if we have number A and number B, their ratio is expressed in fraction a/b.

Let’s check out some examples:

The ratio between 6 and 2 is 3 because 6/2 = 3

The ratio between 1 and 0.2 is 5 because 1/0.2 = 5

The ratio between 100 and 10 is 10 because 100/10 = 10

If you want to PRACTICE, you can apply the ratio concept to following exercises:

What is the ratio between the numbers 3 and 81?

How many times bigger is the number 224 than 16?

How many times smaller is the number 3 than 17?

What is x’s value if the ratio between 8 and x is 1.6?

What are two numbers that have a ratio of 11?

Proportion

But…Can we find different number pairs that have the same ratio between them?

Of course we can! There are an infinite number of number pairs than meet this condition. For example, we are going to think of different number pairs that have 2.5 as their ratio:

5 and 2; 10 and 4; 100 and 40; 2,5 and 1…

We can represent these by doing the following:

5/2= 10/4 = 100/40 = 2.5/1 =2.5

All of these number pairs are proportional to each other.

So, we say that the numbers a, b, c and d are proportions if the ratio between a and b is the same as the ratio between c and d. This written as:

a/b=c/d

It’s read: a is to b as c is to d

In this proportion, a and d are extremes, and b and c are means. In proportions, the PRODUCT of the means needs to be equal to the product of the extremes.

So, we do this by a x d  = b x c





Hope it will help you
2.

State True or False. Give reasons also. "If b=0 and c

Answer»

HEY there......

No, since 0.2 does not satisfy the quadratic EQUATION i.e., ( 0.2)2 – 0.4 = 0.04 – 0.4 ≠0.

HOPE IT HELPS ✌ ✌ ✌

3.

5 thosand is equal to how many lac

Answer»

5thousand is EQUAL to 0.05lac.

4.

By which least number should 3078 be divided in order to get a perfect square

Answer»

3078 = 2 x 3 x 3 x 3 x 3 x 19

Here, 2 & 19 are not in PAIR so we DIVIDE it by ( 2x 19) = 38


Hope it HELP u

plz MARK as a brainliest

5.

Least five digit number which is divisible by 8 9 and 12

Answer»

16272 is DIVISIBLE by 8,9 and 12

6.

How many perfect square are there between 200 and 1000

Answer»
225 =  \sqrt{15 \times 15 \\  \\ 961 \sqrt{31  \times 31}
Hey mate

Here is ur ans

_____________^_^


There are 17 PERFECT squares

The 1ST perfect square after 200 is 225


And the last perfect square is 961

225=15

961=31

Now do subt we get =31-15+1
=17

Hope it helps U ^_^___

7.

Find the sum of 13 terms of an AP whose an=5-6n plz it's urgent

Answer» HOPE it HELPS....if it is CORRECT. ..
..
.
.
.
8.

If x is 75% of y then the percentage of y to x is

Answer»

Supppse y =100
X will be =75
then y/x % =100/75 × 100= 133.33

9.

N square -25n+144???

Answer» 0
10.

tab A fill a tank in 4 hours and tab B fill it in 8 hours how long would it take to fill the tank if both the tabs are opened simultaneously

Answer»

ANSWER:

tab A use this same tabB to start togethere will full the TANK to full the tank at same TIME

11.

If 1/4+3i is a root of ax

Answer» GIVE FULL QUESTIONS ....
12.

The ages of rahul and laxmi are in the ratio 5:7. four years later the sum of their ages will be 56 year. what is their present age.?

Answer»

Let the age of rahul be 5X YRS
let the age of laxmi be 7x yrs
four yrs later
the age of rahul 5x+4
the age of laxmi 7x+4
sum of their ages=56
(5x+4)+(7x+4)=56
12x+8=56
12x=56-8=48
x=48÷12
=4

the age of rahul =7x=7×4=28
the age of laxmi=5×=5×4=20

hope it will HELP you
pls MARK as brainliest

13.

A sum of Rs.8000 becomes Rs.8800 in one year at a certain rate of interest per annum.I) Find the compound interest on the sum for 2 years at the same rate of interest.II) Find the amount after 3 years at the same rate of compound interest.

Answer»

I HOPE it will HELP you

14.

What is ab divided by a equal to

Answer»

ab÷a=b because a GETS CANCELLED.

15.

If the sum of 3and 8 of an AP is 7 and the sum of 7 and 14 is -3find the 10th term

Answer»

HOPE this HELPS you
Mark BRAINLIEST if you find it useful.

16.

In the triangle abc anglebac=90degree ad perpendicular to bc ab =15 cm and bd=9cm then the angle of bd is what

Answer»

Here AD is PERPENDICULAR to BC
so, ANGLE D =90°
and AD BISECTS angle A =90÷2=45°
=>angle B=180-(90+45)=45°

17.

22 is the smallest no. then find other no. of phythagorean triplet

Answer»

In Pythagorean triplet
there are three numbers
2m
m^2+1
m^2-1

so put 22 as any of them

take 2m=22
so m=11
.
then m^2+1= 11^2+1 = 121+1 =122
and
m^2-1 = 11^2-1 =121-1 = 120

then the three no.s are

22 , 120 , 122


THANK U
●●●●●●●●●●●●
HOPE HELPS
PLEASE MARK IT AS BRAINLIEST
☆☆☆☆☆☆☆☆

18.

Pleaseerezolvati inecuatiile:a)(x+1^2)>0b)(x-2^2)≤0c)x^2-3x+20e)-4x^2+x-3

Answer» PLEASE let me know if you NEED ANYTHING ELSE from
19.

What is the importance of abacus and its benefits Write in brief.Haha no one can answer this

Answer»

HEY DEAR HERE IS YOUR ANSWER ✌✌❤❤

__________________________________
__________________________________

➡ The Importance of abacus is that the Basic mathematical operations like ADDITION, subtraction, multiplication and division are solved by simple movement of beads in this instrument.

This helps the student to develop a pictorial representation of the problem in the brain and by regular practice, the brain learns to solve the problem without actual use of any aid including the abacus. The students thereby develop an exciting photographic memory. 

___________________________________
___________________________________

➡ BENEFITS OF ABACUS ARE :-

1. It helps in boosting the calculation skills thus making them better and faster like never before.

2. Though, children have most sorted life but they still SUFFER from minor stress and PRESSURE. Therefore, abacus helps in PROVIDING them endurance for the stress and pressure they have to deal with.

3. It also helps in improving the problem solving ABILITY of the children. This training program is very effective for those who do not like studying math.

___________________________________
___________________________________

HOPE IT HELPS U.✌✌
# BE BRAINLY.❤❤
THANKS.❤❤

20.

By what number should 6/32 be divided to get _18/56

Answer»

6/32×3/3 GIVES PRODUCT as 18/56

21.

Factorize using suitable identity

Answer»

Splitting the middle TERM and by USING the formulae
\sqrt{a - <klux>B</klux>}  =  \sqrt{(a + b) }^{2}  -  2a \times b
it wud easily give you the values of a and b which are used to DETERMINE the factors

22.

-32/9✖3/8➗16/21Plz solve dis

Answer»

-.
54/63
hope it will HELP you.
please MARK me as BRAINLIEST

23.

Tell the answer pls fast,see pic attached

Answer» ISME X KI value batani h NA
24.

-4/7✖14/3-13/3➗26/5Please solve dis

Answer» HII There!!



Here is your ANSWER...

HOPE it helps☺
25.

4,12,3,7=32 5,11,1,8=56 then 9,6,2,3=

Answer»

4,12,3,7=32, here ONE can GET 32 by first adding 4,12,3,7 to get 26 which then multiplied by 1 and then add 6 to it, to get 36.

5,11,1,8=56, here one can get 56 by first adding 5,11,1,8 to get 25 which is then multiplied by 2 and then add 6 to it, to get 56.

Similarly 9,6,2,3= 66. we get 66 by adding 9,6,2,3= 20 which is multiplied by 3 and then add 6 to sum to get 66

Therefore 9,6,2,3= 66 is the answer.

26.

50983 nearest ten thousand

Answer»

It will be 50000 OK if itcis RIGHT so FOLLOW me

27.

I am quadrilateral formed by joining mid point of parallelogram

Answer»

are you LOOKING for the FORMULA?

28.

If an A.P , if d= -4 ,n=7,l=4,then ais

Answer»

d = -4
N=7
L = 4
We know that ,
An or l = a + ( n - 1 ) × d
4 = a + ( 7-1) × -4
4÷-4 = a + 6
-1 = a + 6
-1 -6 = a
-7 = a
Hope this will help you !!!!
If you like this mark it as brainlliest !!!!
Pleaseeeeeeeeeee!!!!!!!!!!!!!!!!!

29.

32u+36v=7. And 40u+48v=9. .solve by using elimination method....explain briefly

Answer»

32u+36v=7. ------------>(×40)
40u+48v=9. ------------>(×32)
1280u+1440v=280
1280u+1536v=288. (1280 gets cancelled)
-96v=-8
v=1/12
u=1/8. (EQUATING 'v' in 32u+36v=7)

Hope this is useful then mark as brainliest ANSWER if u want to

30.

The number of runs scored in a match by each player of a cricket team is given below.21, 17, x, 100, 57, 48, 47, 20, 0, 4, 2If the mean score is 30, find the value of x.

Answer»

Mean=MEMBERS÷no.of members
30=m÷11
30×11=m
330=m
x=-m+remain
=-330+361
=31

31.

Inter 2nd year maths 2b circles chaper area of a triangle formules

Answer»

I THINK it is
1/2×r^2×sintheta

I didn't understand your QUESTION properly
but if you WANT area of a triangle inside a circle then it is this formula only.(RELATED to sector of circle)

32.

In triangle abc,ab =6 cm,and de||bc such that ae=ac/4,find ad

Answer»

1.5 CM will be the ANSWER

33.

How many types of triangle?

Answer»

There are THREE TYPES of TRIANGLE

34.

Write the reciprocal of (3/11) _ (9/22÷ 3/4)

Answer»

the ANSWER is 103/33

mark it the BRAINLIEST

35.

Question no.7 plzz answer full details .

Answer»

I HOPE it will hlp U.....
what is the CORRECT ans........
pz telll

36.

What is the value of 2 / 3 to the power 4 into 3 / 8 to the power 3

Answer»

432/41472 is the ANSWER for your question

mark it the BRAINLIEST

37.

Define the term triangle ?

Answer»

a PLANE FIGURE with three STRAIGHT SIDES and three angles.

38.

Please solve the question number 7

Answer» ANS is (A) 0 ... SOLUTION is in the PIC :)
39.

Ap= 24,21,18 sn= 78 n=?

Answer»

I THINK ANSWER is 34

40.

Math Bodmas ( 6\2+5×4+6-3)

Answer» 3 +20+6-3=26
is it HELPFUL
41.

Which of the following fractions have the same value as 16 ÷ (–3)?

Answer»

where are the OPTIONS FRIEND

42.

Simplify:

Answer» HOPE it HELPS you.....
43.

A rhombus has its diagonal 7cm and 6cm.what is its area

Answer»

DIAGONAL 1 = 6cm
Diagonal 2 = 7cm
Area of RHOMBUS = 1/2 × de × de
= 1/2 × 7 × 6
= 21 cm square

44.

The product of 2rational number is -28/81 one of them is -2/3 find the other

Answer»

Hey

Here is your ANSWER,

Product of two NUMBERS = -28/81
One NUMBER = -2/3
Another number = X

X x (-2/3) = (-28/81)
X = (-28/81) x (-3/2)
X = 14/27

Hope it helps you!

45.

The sides of two squares are 2.4 and 1.8 metres long respectively. Find the side of square equal to the sum of the two square in area

Answer» REQUIRED AREA of SQUARE is 2.4×2.4 +1.8×1.8=9 sqm
length of each SIDE is =√9=3m
46.

If the diameter of the bigger circle is 126 cm, and of the smaller circle is 112 cm. Find (1) the difference of their circumferences (2) the difference of their areas.

Answer»

The DIFFERENCE of their CIRCUMFERENCE is 44CM and the DIFFERENCES of their AREAS is 2618 Sq.cm

47.

The difference between the compound interest and the simple interest on a certain sum for 2 years at 6 % per annum is rs.18. their sum is?

Answer»

I HOPE it will HELP you

48.

In how many ways 14 identical toys be distributed among 3boys

Answer»

There are MANY POSSIBILITIES LIKE 1,1,12 and 2,3.11and many other WAYS.

49.

In how many ways can you write 3240 as product of three positive integers a,b,c

Answer» PLEASE WRITE the VALUES of a B and C
50.

2m+1 upon 5 cube plz solve this

Answer»

i am not ABLE to GET the QUESTION SORRY