A man walks at the speed of 4km per hour from point A to B and comes back from point B to A at the speed of 8km per hour. What is the ratio between the time taken by man from point A to B and B to A?
Latest Answer: Consider the distance between points as x. Then time taken to cover the distance a-B be t1 and Between B-A be t2. Then x/4=t1 and x/8=t2. Dividing these two we get 2:1 which is the required answer. ...
. A candidate appearing for an examination has to secure 40% marks to pass paper I. But he secured only 40 marks and failed by 20 marks. What is the maximum mark for paper I?
Latest Answer: maximum marks for paper 1 is 150(40/100) *x=60x=60*(40/100) =150 ...
A super fast bus of KSRTC starting from 'Trivandrum' and reaches 'Attingal' in 45 minutes with an average speed of 40 km/hr. If the speed is increased by 10 km/hr how much time it will
Latest Answer: b) 36 mind=s*ts=40 km/hr=40/60km/mint=45mind=(4/6)*45=30kmnow increased speed= 50 km/hr=50/60 km/mind=30 kmt=d/s = 36 min ...
Find the right number, from the given options, at the place marked by the question mark: 2, 4, 8, 32, 256, ?
Latest Answer: Each of the preceding number is multipied by the previous number So on multiplying 2*2 = 4 4*2 = 88*4 = 3232*8 = 256256*32 = 8192so the answer for this series is 8192 ...
An amount doubles itself in 3 years. When This amount can become 8 times of itself?
Latest Answer: Let 'x' be the amount.& this amount doubles itself in 3 years [Given]i.e; x -- 2x in 3 yrsi.e; 2x = 3=> 8x = 12Therefore, this amount become 8 times itself in 12 years ...
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.
In 80 coins one coin is counterfiet what is minimum number of weighings to find out counterfiet coin?
Latest Answer: 8 Men work in 24 days:- 801 Men work in 24 days:- 80/8 = 101 Men work in 1 days:- 10/241 Men work in 30 days:- (10/24)*3036 Men work in 30 days:- ((10/24)*30)*36 = 450 ...
Jalia is twice older than qurban. If Jalia was 4 years younger, qurban was 3 years older, the diff. between their ages is 12 years
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
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