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, 10:56: 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, 01:55: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
ICSE 10 - Maths
cot A - 1/ 2 - sec² = cot A / 1 + tan A
Asked by bhagvantingre | 24 Apr, 2024, 03:05: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
solve xdy-ydx=0
Asked by shaikafridi860 | 21 Apr, 2024, 11:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
if a is an acute angle and sec a = 17/8, find all other trigonometric rarios of angle a ( using trigonometric indentities).
Asked by aritramalakar4 | 13 Apr, 2024, 08:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
3√2x×x-5x-√2
question image
Asked by ashwanikaler9 | 11 Apr, 2024, 01:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
prove that
question image
Asked by botlarajshekhar | 22 Mar, 2024, 09:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Mr. Gupta invested Rs. 33000 in buying Rs.100 shares of a company at 10% premium. The dividend declared by the company is 12% . Find: (a) the number of shares purchased by him. (b) his annual dividend
Asked by sagarmishra | 15 Mar, 2024, 03:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
 (a+b)²
Asked by dadoosumeksha | 13 Mar, 2024, 09:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
sheethal has a recurring deposit account in a bank and deposit rupees 300 and at rate of interest of 7℅ and recieved rupees 7725 on maturity, find the time which would the account will be held
Asked by jesnamariaroy2626 | 10 Mar, 2024, 11:28: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
if abc are in Continued proportion then prove that 3a2-4ab+5b2/3b2-4bc+5c2=a/c
Asked by vrj.parmar369 | 07 Mar, 2024, 11:27: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
sole
question image
Asked by ronaldlhouvum | 22 Feb, 2024, 02:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×