Ques:- In a class there are 20 boys and 25 girls. In how many ways can a boy and a girl be selected?
Recent Answer : Added by Rashid Ather Deshmukh On 2021-10-07 15:42:01:
500 ways
Ques:- Mr. T has a wrong weighing pan. One arm is lengthier than other. 1 kilogram on left balances 8 melons on right. 1 kilogram on right balances 2 melons on left. If all melons are equal in weight,what is the weight of a single melon?
Recent Answer : Added by samarth khare On 2021-06-23 17:56:06:
Suppose the lengthier arm of weighing pan is of x cm and other arm is y cm .Also let weight if each melon be m kg.
so applying equilibrium of torque principles ,we get
case 1:-
1x-8my=0
case 2:-
2mx-1y=0
using case 1 equation , we substitute value of x into case 2 equation;
16mmy-1y=0
(16mm-1)y=0
y is length of weighing arm and cannot be 0,
therefore ,
16mm-1 =0
16mm=1
mm=1/16
m= square root (1/16)
m=+-1/4
m is weight of melon and cant be negative.
Hence m, weight of one melon is 1/4 kg
Ques:- WHAT IS YOU EXPERIENCE
Ques:- Mr. Shah decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured fromthe moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
Recent Answer : Added by Palash Kose On 2021-12-04 15:02:28:
46
Ques:- In a row of ten boys, when Rohit was shifted by two places towards the left, he became seventh from the left end. What was his earlier position from the right end of the row ?
Recent Answer : Added by Atif On 2022-12-05 16:13:22:
2nd
Ques:- My mother’s sister’s son’s father’s mother-in-law is related to me as
Recent Answer : Added by Nisha On 2021-03-24 18:26:14:
maternal grand mother
Ques:- There are two positive numbers in the ratio 5:8. If the larger number exceeds the smaller by 15, then find the smaller number?
Recent Answer : Added by Akshat Thakkar On 2021-08-18 16:20:57:
25
Ques:- What was the toughest challenge you?ve ever faced?
Ques:- A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Find out the speed of river.
Recent Answer : Added by Admin On 2020-05-17 11:59:48:
6 miles per hour…….
actually hat fell when they were 1 mile away from starting
and total time hat takes to travel to the starting point is
10 minutes ( 5 + 5 ).so, 1 miles per 10 minutes thats why 6
miles per hour
Ques:- Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance the front wheel gets 10 revolutions more than back wheel . what is the distance?
Recent Answer : Added by Admin On 2020-05-17 11:59:15:
If n = no. of revolutions for back wheel
9n = 7n + 10*7
n=315
Ques:- The marks obtained by Vijay and Amith are in the ratio 4:5 and those obtained by Amith and Abhishek in the ratio of 3:2. The marks obtained by Vijay and Abhishek are in the ratio of?
Recent Answer : Added by Kabir Sani On 2022-03-09 16:30:49:
4:2
Ques:- How are you helping your subordinates develop themselves?
Ques:- Find out the wrong number in each sequence:
8, 13, 21, 32, 47, 63, 83
A. 32
B. 47
C. 63
D. 83
Recent Answer : Added by A.Madhav On 2022-01-08 16:06:20:
47 is answer by consecutive adding of
8+5=13
13+8=21
21+11=32
32+14=46
46+17=63
Ques:- What is meant by HR?
Ques:- Your profile is suited for this job?
Ques:- M men agree to purchase a gift for Rs. D. If three men drop out how much more will each have to contribute towards the purchase of the gift/A. D/(M-3)B. MD/3C. M/(D-3)D. 3D/(M2-3M)
Ques:- Your favourite area of interest
Ques:- Why are you switching over to another Industry which was not familiar to you ?
Ques:- Find the nearest to 25268 which is exactly divisible by 467?
Ques:- How you wil manage dealer network?
Ques:- Was made to wait for long hours before interview started
Ques:- How to handle in critical position?
Ques:- By selling 12 pencils for a rupee a man loses 20%. How many for a rupee should he sell in order to gain 20%?
Ques:- You have two jars, 50 red marbles and 50 blue marbles. A jar will be picked at random, and then a marble will be picked from the jar. Placing all of the marbles in the jars, how can you maximize the chances of a red marble being picked? What are the exact odds of getting a red marble using your scheme?
Recent Answer : Added by Admin On 2020-05-17 12:01:41:
put 1 red marble in one jar and all the rest (99) in the
other.
This gives you 50% from the first jar (if they pick that
jar they will get red 100% of the time). For the other jar
the chances are 49/99 or 49.494949%. Divide that by 2 and
its 24.7474%. Total odds are 50% plus 24.7474% = 74.7474%
Ques:- How would you plan a vacation ?
Ques:- What is the job goals life goals
Ques:- The difference between the ages of two of my three grandchildren is 3. My eldest grandchild is three times older than the age of my youngest grandchild and my eldest grandchild’s age is two years more than the ages of my two youngest grandchildren added together. How old is my eldest grandchild?
Ques:- Age difference between two brothers is 3 years. After 6 years the ratio between the age is 9:8 What are their ages?
Recent Answer : Added by Manpreet Singh Kambo On 2021-10-12 12:53:04:
Previous their age was 21 and 18 respectively
Presently, after 6 years the age is 27 and 24.
Ques:- What is the sum of all numbers between 100 and 1000 which are divisible by 14 ?
Recent Answer : Added by Kalyani Nanaware On 2022-08-14 16:43:06:
The numbers that lie between 100 and 1000 which are divisible by 14 are 112, 126,140 …,994
a = 112; l = 994, d = 14
n= (l−a)/d+1
= (994-112)/14+1
= 64
Sn=n/2(l+a)
= 64/2(994+112)
= 32*1106
= 35392
Ques:- A person has 60 pens. He sells some of these at a profit of 12% and the rest at 8% loss. On the whole, he gets a profit of 11%. How many pens were sold at 12% profit and how many at 8% loss?
A. 54
B. 57
C. 58
D. 60
Recent Answer : Added by Anon On 2022-08-14 16:31:46:
57 and 3
12 x 57 = 684
-8 x 3 = -24
684 – 24 = 660
660/ 60 = 11
500 ways