Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 10 Answered

If the speed of the car is increased by 10km per hr,it takes 18 minutes less to cover a distance of 36 km.Find the speed of car
Asked by sukhmansohitsingh0565 | 19 Oct, 2019, 22:56: PM
answered-by-expert Expert Answer
let space the space speed space be space straight x distance space equals space 36 km time space equals space 36 over straight x on space increasing space speed space to space straight x space plus 10 straight t equals fraction numerator 36 over denominator straight x plus 10 end fraction difference equals 18 over 30 space hrs 36 over straight x minus fraction numerator 36 over denominator straight x plus 10 end fraction equals 18 over 30 space simplfying space we space get straight x squared plus 10 straight x minus 1200 equals 0 straight x equals 30 space or space straight x equals negative 40 so space straight x space equals 30 speed space of space car space equals space 30 km divided by hr
Answered by Arun | 20 Oct, 2019, 13:55: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
ICSE 10 - Maths
find AP whose 6 th term = 5 and 10 th term=9
Asked by ag1106511 | 17 Jul, 2024, 00:41: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
sum of 10 tems of ap is 35 and sum of 9 terms of ap is 28. find the 10th term of an ap.
Asked by astonfern123 | 14 Jul, 2024, 20:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
the speed of an aeroplane by 40 km per hour it takes Minutes more to cover 1200km find speed of the aeroplane
Asked by anjumnahida176 | 23 Jun, 2024, 15:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
hhg
question image
Asked by rajibjena122 | 19 Jun, 2024, 20:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
9 years ago grandfathers age was 9 times the grandsons age at that time after 15 years age will be ET rice as the grandsons age find their present age
Asked by rupalipatange0 | 13 Jun, 2024, 20:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
let c be the path leading from the origin to the point (1,1,1) show that integral over c [2xydx+(x²+2yz)dy+(y²+1)dz]=3
Asked by tanushreetanu46t | 12 Jun, 2024, 22:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
show that integral over c [y²dx+2xy dy] is independent of the path joining 0,1 and 1,3 and hence evaluate
Asked by varucreations16 | 12 Jun, 2024, 22:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
evaluate integral over c (2x+y)ds where c is the circle x²+y²=25 on the xy plane from the points 3,4 to 4,3
Asked by varucreations16 | 09 Jun, 2024, 15:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
If two coins are tossed, what is the probability of getting(1) 2 heads (2) no heads (3) at least 1 head
Asked by rakesh_shukla2006 | 06 Jun, 2024, 12:55: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
(a²+c²),(ab+cd) and (b²+d²) and in continued proportion, prove that a,b,c,d are in the proportuon
Asked by raghutangi04 | 30 May, 2024, 19:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Are You a Teacher or a Parent Seeking Customised Tests? Click here
×