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CBSE Class 10 Answered

Shush and Komal can do a job together in 7 days. Shush is 7/4 times as efficient as Komal. The same job can be done by Shush alone in
Asked by rushabhjain.a | 31 Jan, 2019, 09:46: AM
answered-by-expert Expert Answer
shush space completes space work space in space straight s space days so space in space one space day space 1 over straight s th space part similarly Komal space can space complete space 1 over straight k th space part space in space straight a space day 1 over straight s plus 1 over straight k equals 1 over 7 shush space is space fraction numerator 7 over denominator 4 space end fraction times space more space efficient 1 over straight s equals space fraction numerator 7 over denominator 4 space end fraction cross times 1 over straight k fraction numerator 4 over denominator 7 space end fraction cross times 1 over straight s equals space 1 over straight k so space 1 st space eqn space becomes 1 over straight s plus fraction numerator 4 over denominator 7 space end fraction cross times 1 over straight s equals 1 over 7 straight S equals 11 space days
Answered by Arun | 31 Jan, 2019, 10:17: AM

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CBSE 10 - Maths
cos80÷ sin10+cos59• cosec31
Asked by raopaidi | 25 Apr, 2024, 04:06: PM
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CBSE 10 - Maths
2/x+2/3y=1/6; 3/x+2/y=0
Asked by aditikaldate7 | 21 Apr, 2024, 03:16: PM
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CBSE 10 - Maths
ABCD is a rectangle in which diagonal AC is equals to 17 cm angle BCA is equals to thitha and sin theta is equals to 8/17 find the area of rectangle ABCDE (ii) the perimeter of rectangle ABCD
Asked by pathaksuman622 | 21 Apr, 2024, 11:56: AM
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CBSE 10 - Maths
PQ is a chord of length 8 cm to a circle of radius 5 cm. The tangents P and Q intersect at a point T. Find the length of the tangent TP.
Asked by yalagondanikhil | 16 Apr, 2024, 12:25: PM
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CBSE 10 - Maths
if one of the zeroes of quadratic polynomial F(x) = 4x² - 8kx - 9 is equal in magnitude but opposite in sign, find K
Asked by rrajansinghakb199 | 08 Apr, 2024, 05:12: PM
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CBSE 10 - Maths
express 15.265 in p/q form?
Asked by nagalaxmidurgarao937 | 08 Apr, 2024, 01:42: PM
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CBSE 10 - Maths
the poles AB and CD of different heights are standing vertically on the ground level from a point P on the line joining the foots of the pole on the level of ground the angle of elevation to the top of the pole are founded to be complementary the of the CD and the distance PD 20√3m and 20m respectively if the BP is 10m then find the length of AB and the distance AC between the tpo of the poles
Asked by mraniruddha03 | 02 Apr, 2024, 06:44: PM
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CBSE 10 - Maths
from the pair of linear equations in the following problems and find their solution graphically 10 students of class 10 to part in a mathematic quiz if the number of girls is for more than the number of boys find the number of boys and girls who took part in the quiz
Asked by muttenenimalleswarrao | 29 Mar, 2024, 08:32: PM
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CBSE 10 - Maths
maths
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Asked by sonawnerohan01 | 23 Mar, 2024, 12:25: PM
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CBSE 10 - Maths
The distance of the point (5,-2) from x-axis will be :-
Asked by pathakvaishnavi9139 | 23 Mar, 2024, 10:45: AM
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