Ques:- There are some pigeons and hares in a zoo. If heads are counted, there are 200. If legs are counted, there are 580. The number of hares in the zoo is?
Recent Answer : Added by Amelia On 2022-08-24 17:03:31:
X= pigeon
Y= hares
X+Y= 200
2x+4y=580
By solving y= 90
X=110
So Hares= 90
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Ques:- The three boxes 1,2,3 has values resp. AB,BC,AC Get 2A(B+C) +AC-2C(A-B)in Box 1 using only addition in 3 steps.
Recent Answer : Added by Admin On 2020-05-17 12:02:03:
GIVEN: 2A(B+C)+AC-2C(A-B)
THEREFORE 2AB+2AC+AC-2AC+2BC
2AB+AC+2BC
2(AB+BC)+AC
LET b1=AB b2=BC b3=AC
STEP1: b1 = b1+b2
so b1 = AB+BC
THEREFORE
NOW: b1 = AB+BC b2 = BC b3 = AC
STEP 2: b3 = b1+b3
so b3 = AB+BC+AC
THEREFORE
NOW: b1 = AB+BC b2 = BC b3 = AB+BC+AC
STEP3:
NOW: b1 = b1+b3
so b1 = AB+BC+AB+BC+AC
=2(AB+BC)+ AC
AB BC AC
STEP1 AB+BC BC AC
STEP2 AC BC AB+BC+AC
STEP3 AB+BC+AB+BC+AC BC AB+BC+AC
i.e 2(AB+BC)+AC BC AB+BC+AC
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Ques:- Susan wants to put up fencing around three sides of her rectangular yard and leave a side of 20 feet unfenced. If the yard has an area of 680 square feet, how many feet of fencing does she need?
Ques:- Tell me something your self?
Ques:- Some of the friends decided to go on a picnic they decided to go on a bike if the biker decided to take one pillion with him then there is no means of travel for the people as equal to the no of bike + 1. if they decided to go on two trip three bike r left unused in the second trip find the no of person having bike?
Recent Answer : Added by Admin On 2020-05-17 12:03:16:
If there are n bikes then the no. of people are 2n+1. n are dropped in firs trip, in second trip 3 bikes are unused, so 2n-3 + n covers 2n+1 people. i.e. n + 2n – 3 = 2n +1
n = 4
No. of people = 9
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Ques:- U r watching an inp. cricket match.Suddenly the tv goes blank. Write the steps u ll take to find the fault?
Ques:- The average age of a group of 10 persons was decreased by 3 years when one person, whose age was 42 years, was replaced by a new person. Find the age of the new person?
Recent Answer : Added by MAMIDI LIJITA SREE On 2023-01-21 17:36:46:
12
Ques:- A and B entered into a speculation. A put in Rs.500 and B put in Rs.450. At the end of 4 months A withdrew half of his capital and at the end of 6 months B withdrew half of his capital, then C entered with a capital of Rs.700. At the end of 12 months, in what ratio would the profit be divided?
A. 80 : 81 : 84
B. 80 : 81 : 85
C. 81 : 81 : 84
D. 81 : 81 : 85
Recent Answer : Added by Admin On 2022-09-23 18:55:36:
A. 80 : 81 : 84
Ques:- What types of tools or measuring devices do you use related to math?
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Ques:- In a team of 12 persons, 1/3 are women and 2/3 are men. To obtain a team with 20% women how many men should be hired?
Recent Answer : Added by Admin On 2020-05-17 12:00:23:
12(1/3) = 4 so women = 4
==>men = 12-4 = 8
if team needs 20% of women then men Will be 80%
consider u want to hire “x” men
so,
(12+x)(80/100) = 8 + x
so, x= 8
Ques:- At what rate percent per annum will the simple interest on a sum of money be 2/5 of the amount in 10 years?
Recent Answer : Added by Atif On 2022-12-05 16:13:28:
4
Ques:- Let D be the set of all points in the real plane such that |x| + |y| <= 1,where |x| (respectively |y|) denotes the absolute value of x (respectively y).Prove that amongst every 5 points in D, there exist two points whose distancefrom one another is at most 1.
Ques:- Have you ever worked for a foreign company before, outside your country?
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Ques:- At a special sale, 5 tickets can be purchased for the price of 3 tickets. If 5 tickets are purchased at the sale, the amount saved will be what percent of the original price of the 5 tickets?
A. 20%
B. $$33$$$$1 / {3}$$%
C. 40%
D. 60%
Recent Answer : Added by narendra On 2022-09-18 09:03:10:
C
Ques:- A computer printer produces 176400 lines in a given day. If the printer is in operation for 7 hrs during the day how many lines did it print per minute?
Recent Answer : Added by Alex On 2022-04-02 06:58:03:
I think speed of printing per minute has nothing do to with how long printer being at work.
If “given day” = 8 hours.
8h = 480m
x = 176400 / 480 = 367.5 lines per minute.
Ques:- What was your profile?
Ques:- 9 years ago I was five times as old as my eldest son Today I am 3 times his age. HOW old am I now?
Recent Answer : Added by Aftab On 2022-11-09 16:47:00:
=> 3s = d
=> 5(s-9) = d
therefore
5s-45=3s
2s = 45
s=22.5
hence
d= 67.5
Ques:- A train leaves Delhi at 9 a.m. at a speed of 30 kmph. Another train leaves at 2 p.m. at a speed of 40 kmph on the same day and in the same direction. How far from Delhi, will the two trains meet?
Recent Answer : Added by Alan On 2022-11-14 17:03:53:
At 680Km
Ques:- How well do you adapt to new working environments?
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X= pigeon
Y= hares
X+Y= 200
2x+4y=580
By solving y= 90
X=110
So Hares= 90