**Ques:- Sum of the digits number is 8 and their product is 12. What is the difference between the digits?**

**Ques:- One person is wearing Black and White shoes as his pair. If he is having 20 white and 20 Black shoes. What will be the less number of time he have try to take his correct pair of shoes.**

**Ques:- Consider a function which, for a given whole number n, returns the number of ones required when writing out all numbers between 0 and n. For example, f(13)=6. Notice that f(1)=1. What is the next largest n such that f(n)=n?**

**Recent Answer**: :

#1: N = 1, f(N) = 1

#2: N = 199981, f(N) = 199981

#3: N = 199982, f(N) = 199982

#4: N = 199983, f(N) = 199983

#5: N = 199984, f(N) = 199984

#6: N = 199985, f(N) = 199985

#7: N = 199986, f(N) = 199986

#8: N = 199987, f(N) = 199987

#9: N = 199988, f(N) = 199988

#10: N = 199989, f(N) = 199989

#11: N = 199990, f(N) = 199990

#12: N = 200000, f(N) = 200000

#13: N = 200001, f(N) = 200001

#14: N = 1599981, f(N) = 1599981

#15: N = 1599982, f(N) = 1599982

**Ques:- During a trip to a wildlife safari, 29 tourists clicked photographs of tigers, 21 clicked photos of elephants, 26**

clicked photos of deer; 14 clicked photos of elephants and deer, 12 clicked photos of tigers and elephants, 15 clicked photos of deer and tigers, and 8 clicked photos of all the three animals. Each tourist took at least one photograph.

1. How many tourists went to the wildlife safari?

2. How many tourists clicked photographs of tigers only?

clicked photos of deer; 14 clicked photos of elephants and deer, 12 clicked photos of tigers and elephants, 15 clicked photos of deer and tigers, and 8 clicked photos of all the three animals. Each tourist took at least one photograph.

1. How many tourists went to the wildlife safari?

2. How many tourists clicked photographs of tigers only?

**Recent Answer**: :

1. 43 venn diagram

2. 10 using venn diagram

done it roughly chances of having wrong are their..thank u.

**Ques:- A man purchased 15 pens, 12 books, 10 pencils and 5 erasers. The cost of each pen is Rs.36, each book is Rs.45, each pencil is Rs.8, and the cost of each eraser is Rs.40 less than the combined costs of pen and pencil. Find the total amount spent?**

**Recent Answer**: :

Solution:

As given, we have,

The cost of one pen = 36 Rs.

So, the cost of 15 pens = 36 × 15 = 540 Rs.

The cost of one book = 45 Rs.

So, the cost of 12 books = 45 × 12 = 540 Rs.

The cost of one pencil = 8 Rs.

So, the cost of 10 pencils = 8 × 10 = 80 Rs.

Now,

the cost of each eraser is 40 Rs. less than the combined costs of pen and pencil.

So,

Combined costs of pen and pencil = 36 + 8 = 44 Rs.

Cost of one eraser = 44 – 40 = 4 Rs.

So, the cost of 5 erasers = 4 × 5 = 20 Rs.

Hence,

The total amount spent is

Hence, the total amount spent is 1180 Rs.

**Ques:- 121 : 169 :: 361 : __**

**Recent Answer**: :

441=21^2

**Ques:- Find 4 numbers such that sum of every 2 and sum of all 4 are perfect squares.**

**Ques:- January 1, 1995 was a Sunday. What day of the week lies on January 1, 1996?**

**Recent Answer**: :

C. Monday

A year has 52 weeks and every week has 7 days.

We just add up one day to the present day of the year and that would automatically act as the day of the next year.

In case of leap years in between, one extra day gets added in the entire year making it 366 days instead of 365 days in an ordinary year and we add two days in that case.

**Ques:- The recipient of Indira Gandhi Prize for Peace, Disarmament and Development for 2008 is?**

**Ques:- A and B complete a work in 6 days. A alone can do it in 10 days. If both together can do the work in how many days?**

**Ques:- Why are you the best person for this job?**

**Ques:- Relative experience to the role offered**

**Ques:- Why do u need to do job as your dad is an employee?**

**Ques:- The newly formed 21st district of Haryana is?**

**Recent Answer**: :

Palwal

**Ques:- Two trains of equal lengths take 10 sec and 15 sec respectively to cross a telegraph post. If the length of each train be 120 m, in what time will they cross other travelling in opposite direction?**

**Recent Answer**: :

12

**Ques:- . The contribution of agriculture to National Income inIndia now is approximately:**

**Recent Answer**: :

B. 70%

**Ques:- Why are you working in sales**

**Ques:- Members in the family**

**Ques:- If 2x + y = 10 and x = 3, what is x – y**

**Recent Answer**: :

X-Y=-1

**Ques:- A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:**

**Recent Answer**: :

Hint: Assume that the speed of the stream is x and the speed of the boat in still water is x. From the statement of the question form two equations in two variables x and y. This system is reducible to linear equations in two variables. Reduce the system to a system of linear equations in two variables by proper substitutions. Solve the system of equations using any one of the methods like Substitution method, elimination method, graphical method or using matrices. Hence find the value of x satisfying both the equation. The value of x will be the speed of the stream.

Complete step-by-step answer:

Let the speed of the stream be x, and the speed of the boat in still water be y.

We have the speed of the boat upstream = y-x.

Speed of the boat downstream = y+ x.

Now since it takes 14 hours to reach a place at a distance of 48 km and come back, we have the sum of the times taken to reach the place downstream and time taken to return back upstream is equal to 14.

Now, we know that time =Distance speed

Using, we get

Time taken to reach the place =48y+x and the time taken to return back =48y−x.

Hence, we have

48y+x+48y−x=14

Dividing both sides by 2, we get

24y+x+24y−x=7 —–(i)

Also, the time taken to cover 4km downstream is equal to the time taken to cover 3km upstream.

Hence, we have 4y+x=3y−x

Transposing the term on RHS to LHS, we get

4y+x−3y−x=0 ——– (ii)

Put 1y+x=t and 1y−x=u, we have

24t+24u=7 ——-(iii)4t−3u=0 ——–(iv)

Multiplying equation (iv) by 6 and subtracting from equation (iii), we get

24t−24t+24u+18u=7⇒42u=7

Dividing both sides by 42, we get

u=742=16

Substituting the value of u in equation (iv), we get

4t−3(16)=0⇒4t−12=0

Adding 12 on both sides, we get

4t=12

Dividing both sides by 4, we get

t=18

Reverting to original variables, we have

1y+x=18 and 1y−x=16

Taking reciprocals on both sides in both equations, we have

y+ x=8 ——- (v)y−x=6 ——–(vi)

Adding equation (v) and equation (vi), we get

2y=14

Dividing both sides by 2, we get

y=7.

Substituting the value of y in equation (v), we get

7+x=8

Subtracting 7 from both sides we get

x = 8-7 =1

Hence the speed of the stream is 1 km/hr.

**Ques:- If Rs 20/- is available to pay for typing a research report & typist A produces 42 pages and typist B produces 28 pages. How much should typist A receive?**

**Recent Answer**: :

Total Pages = 42+28 = 70 pages

for 70 pages we give Rs.20/-

and for 42 pages we give x

thus x = (42×20)/70

x = 12

The Answer = 12/-

**Ques:- Complete the series: 2, 5, 9, 19, 37, ……**

**Recent Answer**: :

75

**Ques:- Which type engg. do u have**

**Ques:- BACKGROUND OF YOUR FAMILY?**

**Ques:- ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.)Â (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?**

**Ques:- Six years ago, the ratio of ages of Kunal and Sagar was 6:5. Four years hence, the ratio of their ages will be 11:10. What is Sagar’s age at present?**

**Ques:- What value addition you bring to the table?**

**Ques:- What is the area of a rectangle whose length is twice its width and whose perimeter is equal to that of a square whose area is 1**

**Ques:- If the side of a square is increased by 25% what will be the percentage increase in the area?**

**Recent Answer**: :

56.25 % is the right answer.

area of square = side ^ 2

at first, it was 100% , means 1

then, a side was enlarged to 25%, means now, 125% means new side is 1.25

taking square will give 1.5625

1.5625 – 1 = 0.5625

so, 56.25% increment in area.

**Ques:- Which post you can display your talent without have problem?**

Recent Answer: Added by Advay Singh On 2021-03-25 16:51:43:Either 4 or (-)4