Ques:- From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is -.
Recent Answer : Added by Admin On 2022-09-29 19:02:13:
Explanation:
Let E1 be the event of drawing a red card.
Let E2 be the event of drawing a king .
P(E1 ∩ E2) = P(E1) . P(E2)
(As E1 and E2 are independent)
= 1/2 * 1/13 = 1/26
Ques:- What you will be Good carrier
Ques:- There are 6 couples (12 people). 4 people are selected at random. What is the probability that exactly one couple will be selected ?
Recent Answer : Added by An On 2022-09-15 16:37:14:
Prob(choosing two people who are a couple from 6 couples) = 1/6
We have 5 couple left (10 people)
Prob(choosing a person A from 10 people) = 1/10
Prob(choosing 1 person who is not a couple of A) = 1/8
Prob(choosing 4 people that has exactly one couple) = 1/6*1/8*1/10 = 0.0021
Ques:- Which person you admire most in your family and why?
Ques:- Which languages can you read, write and speak?
Ques:- Two vessels A and B contain 62.5% and 87.5% of alcohol respectively. If 2 litres from vessel A is mixed with 4 litres from vessel B, the ratio of alcohol and water in the resulting mixture is?
Recent Answer : Added by Mayank On 2021-10-02 15:45:24:
Alcohol content from
2 l of A (62.5%) : 1.35L
4L of B (87.5%) : 3.50L
Total Acohol content in 6 L : 4.85L or 80.8%
Ques:- Past Experience, Family status and new challenges
Ques:- Where you want join & tell me location?
Ques:- A dishonest shopkeeper professes to sell pulses at the cost price, but he uses a false weight of 950gm. for a kg. His gain is____%.
Recent Answer : Added by Rohit Saha On 2021-09-16 17:27:37:
let’s say the Cost Price is 1000x. (CP)
The selling price is also the same as the Cost price. So, here SP=CP (But he sells 950gm instead of 1000gm)
Instead of 1000gm, he is selling 950 grams at the CP. So he sells 050 gms @1000x price. So his net profit is 50gm.
Now 1000gm is 1000x Rs
So, 50gms is 50x rs. [Apllied Unitary Method]
So his profit percentage is:
Profit Percentage Formula: {(Profit/CP)*100%}
So, Here profit is 50x;
CP is 1000x;
so putting the value in the formula we get, Profit Percentage is: (50x/1000x)*100% =(5000x/1000x)%=5%.
Ques:- On Monday a banker processed a batch of cheques, on Tuesday she processed three times as many, and on Wednesday she processed 4000 cheques. In the three days, she processed 16000 cheques. How many did she process on Tuesday?
Recent Answer : Added by Davemark Kigen On 2021-09-28 17:28:21:
Ques:- A merchant has 140 litres, 260 litres, 320 litres of three kinds of oil. He wants to sell the oil by filling the three kinds separately in tins of equal volume. The volume of such a tin will be
A. 13 litres
B. 16 litres
C. 20 litres
D. 70 litres
Recent Answer : Added by anonymous On 2022-03-09 16:38:05:
20 litres
cos
140 280 320 liters oil are exactly fittable in 20 litred tin
Ques:- How do you design a clock for blind people?
Recent Answer : Added by Elcin Kumar M On 2022-05-17 08:55:19:
I would design a voice integrated clock that reads out the time aloud whenever people ask for time
Ques:- Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him. What is the length of faster train ?
Ques:- Find out the wrong number in a given series.
644, 328, 164, 84, 44, 24, 14
A. 44
B. 84
C. 164
D. 328
Recent Answer : Added by Demelash On 2022-05-17 08:55:46:
D
Ques:- My watch gains 5 minutes, in every hour. How many degrees the second hand moves in every minute?
A. 375°
B. 380°
C. 385°
D. 390°
Recent Answer : Added by sujata On 2022-08-24 17:03:57:
390
Ques:- How many numbers up to 100 are divisible by 7?
Recent Answer : Added by DK BOSS On 2021-07-30 16:27:11:
divide 100 by 7, and you get 14.28. (Obviously you aren’t talking about decimals here) and so 14 numbers can be divisible by 7 up to 100.
The answer is 14.
Ques:- X, Y, Z enter into a partnership investing Rs. 35,000, Rs. 45,000 and Rs. 55,000 respectively. The respective shares of X, Y, Z in annual profit of Rs. 40,500 are:
Recent Answer : Added by Supriya p On 2022-09-28 17:42:52:
X share is 10500
Y share is 13500
Z share is 16500
Ques:- The number of prime numbers between 0 and 50 is
A. 14
B. 15
C. 16
D. 17
Recent Answer : Added by narendra On 2022-09-18 09:02:10:
b
Ques:- What is a Show Stopper?
Ques:- A reduction of 25% in the price of oil enables a house wife to obtain 5kgs more for Rs.800, what is the reduced price for kg?
Recent Answer : Added by DK BOSS On 2021-07-17 06:18:24:
Answer: 40
Explanation:
800*(25/100) = 200 —- 5
? —- 1 => Rs.40
Ques:- Showing the man receiving the prize, Saroj said, “He is the brother of my uncle’s daughter.” Who is the man to Saroj?
Recent Answer : Added by Stephen chibuike Joel On 2022-03-09 16:40:01:
Cousin
Ques:- A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?
Recent Answer : Added by DK BOSS On 2021-07-30 16:27:01:
1/4, 1/8
4*8=32
32-4=28
28-8=20
28*20/(4^2)=35.00
Ques:- Time management means planning
Ques:- X and Y began business with Rs.3000 and Rs.4000 after 8 months, X withdraws Rs.1000 and Y advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of X.
Recent Answer : Added by Sandesh Bhat On 2021-08-13 16:27:09:
240.
X : (3000 x 8) + (2000 x 4) = 32000
Y : (4000 x 8) + (5000 x 4) = 52000
X:Y = 32000:52000 = 8:13
8k + 13k = 630
k = 30
X:8 x 30 = 240
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Explanation:
Let E1 be the event of drawing a red card.
Let E2 be the event of drawing a king .
P(E1 ∩ E2) = P(E1) . P(E2)
(As E1 and E2 are independent)
= 1/2 * 1/13 = 1/26