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pole
A pole seen from a certain distance at an angle of 15deg and 100m ahead by 30deg.what is the height of pole?
hydsarema
- May 24th, 2009
Let the height of the pole be hlet the distance at which the angle of elevation is 30 be x.then we havetan 15 is h/100+xtan 30 is h/xby solving we get x as 866and the height as 499.7 which is approx 500m
pawansharma1987
- Mar 13th, 2009
The height of the pole is 50 mappllying trigo, we get,.tan 15 = h/(100+y) ;tan 30 = h/y;solving above, we geth=50m
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Odd One Out
1. Select the odd one out a. Oracle b. Linux c. Ingress d. DB22. Select the odd one out a. WAP b. HTTP c. BAAN d. ARP3. Select the odd one out a. LINUX b. UNIX c. SOLARIS d. SQL SEVER4. Select the odd one out a. SQL b. DB2 c. SYBASE d. HTTP
archie_strider
- Jul 30th, 2010
1. Linux (all other are DBMS)2. BAAN3. SQL SERVER (all other are O.S.)4. HTTP (all other are dbms)
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bus
A non stop bus to Amritsar overtakes an auto also moving towards Amritsar at 10 am. The bus reaches Amritsar at 12.30 pm and starts on the return journey after 1 hr. On the way back it meets the auto at 2 pm. At what time the auto will reach Amritsar?
santhakumar.mit
- Aug 28th, 2010
Totally bus takes 2.30hrs to reach the Amristar.
So 1/5 of i.e 30 mins reach the one place where it met auto.
That means 4/5 of this travel by bus is 2hrs and auto is 4hrs
so2:4::1/2:x
2/4=1/2x
4x=4
x=1
so auto will reach Amirstar at 1hr.
sreenath91
- Jun 23rd, 2008
let the speed of the bus be x since it meets cycle at 10 and reaches destinantion at 12.30distance from meeting point to destination is 2.5xsince cycle also moves it moves for 4 hourse (from 10-2)let ...
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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.
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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
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If 8 men can reap 80 hectares in 24 days, then how many hectares can 36 men reap in 30 days?
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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
