-
If 8 men can reap 80 hectares in 24 days, then how many hectares can 36 men reap in 30 days?
Read Best Answer
Editorial / Best Answer
sanjeev yadav- Member Since Dec-2007 | Jan 9th, 2008
By Direct approach :
more men,more hectares
moredays,more hectares
so,
8 / 36 : 24 / 30 = 80 / x
x = (36 x 30 x 80) / (8 x 24)
450
refer to R.S.aggarwalKamal
- Aug 7th, 2018
8?24/80=30?36/? =450
prititripathi
- Dec 10th, 2010
Ans is simple 1 men 1hec can in =80/24*8so 36 men in 30 day will reap=80*36*30/24*8=145 hec
-
If A,B,C are the mechanism used seperately to reduce the wastage of the fuel by 30%, 40%, 10% What will be the fuel economy if they were used Combined?
A. 68.4
B. 62.2
C. 58
D. 27
Read Best Answer
Editorial / Best Answer
mnotageek- Member Since Jul-2007 | Jul 19th, 2007
ok let us suppose 100 kg of fuel is being wasted.. if i use the A then 30 kg will be saved n 70 kg will be wasted. now if i bring in B it will save 40% of 70 n (70*0.6)=42 kg will be wasted. Now if i incorporate C then it will save 10%of 42 i.e..,(42*0.9) 37.8 kg will be wasted... so 100-37.8=62.2 kg will be saved.. so ans is 62.2%
Anirudh Dayma
- Jul 11th, 2017
Assume total =100 then 30% = 70, 40% reduction = 3/5 and 10% reduction = 9/10. Therefore total reduction = 70X(3/5)X(9/10) = 37.8 therefore ans = 100 - 37.8 = 62.2
Mudit
- Jan 24th, 2017
How can you apply efficiency on wasted fuel?
-
If A is travelling at 72 km per hour on a highway. B is travelling at a speed of 25 meters per second on a highway. What is the difference in their speeds in m/sec.
Read Best Answer
Editorial / Best Answer
Answered by: pratibha
- Nov 5th, 2007
5 m/sec
jeevan ambati
- Aug 30th, 2016
When we convert 25 m/sec into km/ hour we get 90 km/hour so the difference in their speeds would be
90-72=18 km/hour.. or 5 m/sec (18 km/hour converted in m/sec )jeevan ambati
- Aug 30th, 2016
If the speed of B is converted in Km/hour it would be 80 km/hour... so the difference would be 80-72=8 km/hour or 8 km/hour
-
Missing Terms
Find the right number, from the given options, at the place marked by the question mark: 2, 4, 8, 32, 256, ?
Read Best Answer
Editorial / Best Answer
aravinthan2k6- Member Since Dec-2007 | Aug 16th, 2009
Each of the preceding number is multipied by the previous number
So on multiplying 2*2 = 44*2 = 88*4 = 3232*8 = 256256*32 = 8192so the answer for this series is 8192 -
An amount doubles itself in 3 years.
An amount doubles itself in 3 years. When This amount can become 8 times of itself?
Read Best Answer
Editorial / Best Answer
shashibsaini- Member Since Aug-2006 | Mar 27th, 2008
Suppose Amount Was Rs 100.00 In 1st Year
1 To 3 Yrs - 200
4 To 6 Yrs - 400
7 To 9 Yes - 800
Answer is 9 Yrsprititripathi
- Dec 10th, 2010
Let amount b xso x*r*3/100=2x (given double itself in 3 yr)r=200/3x*200*t/3*100=8x (asked in how many yr it will b 8 time of itself where r=200/3)=12 yr
-
In 80 coins one coin is counterfiet what is minimum number of weighings to find out counterfiet coin?
Read Best Answer
Editorial / Best Answer
Himanshu Ashwani- Member Since Oct-2008 | Oct 16th, 2008
The answer is 4
Divide Coins As 27 27 26
now weigh 27 and 27 keeping on both sides of pan u will get the less one
and if both sides are equal then group that has 26 coins has the coin that is counterfiet...
if u get 27 as result divide it in 3 groups
9 9 9
and weight it
keep two groups on two sides of pans and get the result of both sides are equal then the group 9 which was not kept on the pan has the coin which is counterfiet....
now 9 is divided as in 3 groups as
3 3 3 and weigh again and get result
now divide 3 as
1 1 1 and get the coin..
in start if u get answer as 26 divide as 3 groups
9 9 8
wiegh by keeping 9 on both sides and get answer if both are equal then 8 is ans
if 9 is ans again divide as 3 3 3 and then 1 1 1 and get coin...
if u get 8 then divide as 2 2 2 then 1 1 less one be yours coin...Aarthyanbu
- Dec 10th, 2009
It is about 5 times... First step to?split those 80 coins into 40. then again split 40 to 20. divide 20 into 10 and then 5 finally 2 at last find the minimum weight...
Himanshu Ashwani
- Oct 16th, 2008
The answer is 4Divide Coins As 27 27 26now weigh 27 and 27 keeping on both sides of pan u will get the less oneand if both sides are equal then group that has 26 coins has the coin that is counte...
Read Best Answer
Ans