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CBSE Class 10 Answered

 If 20 men take 30 days to complete a job, in how many days can 25 men complete the job ?
Asked by sarvesh.sawant909 | 23 May, 2020, 10:01: PM
answered-by-expert Expert Answer
20 space men space in space 30 space days space rightwards arrow space 1 space work 20 space men space in space 1 space day space rightwards arrow 1 over 30 th space part space of space work 1 space men space in space 1 space day space rightwards arrow fraction numerator 1 over denominator 30 cross times 20 end fraction th space part space of space work so comma 25 space men space in space 1 space day space rightwards arrow fraction numerator 25 over denominator 30 cross times 20 end fraction th space part space of space work so space total space days space equals 600 over 25 equals 25 space day
Answered by Arun | 24 May, 2020, 02:25: PM

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CBSE 10 - Maths
(SinA/1+CosA + 1+cosA/sinA) (sinA/1-cosA - 1-cosA/sinA)=4cosecAcotA    
Asked by prasadshruti9999 | 03 Jun, 2023, 10:05: AM
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CBSE 10 - Maths
cot2 30-2cos2 60-3/4sec2 45-4sec2 30
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Asked by Akhandp457 | 29 May, 2023, 09:06: PM
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CBSE 10 - Maths
find the zeroes of the quadratic polynomial and verify the relationship between the zeroes and the coffiecient 4u+8u
Asked by dimpaldihingia2 | 24 May, 2023, 06:10: PM
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CBSE 10 - Maths
if sin theta = root3/2, find the value of all t- ratios
Asked by akhilthainuan | 22 May, 2023, 02:11: PM
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CBSE 10 - Maths
If α and β are tge zeros of the polynomial x^2 - 6x + k and 3α + 2β=20 , then the value of k is
Asked by ruchipandey20071978 | 21 May, 2023, 10:00: PM
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CBSE 10 - Maths
If one of the zeros of the quadratic polynomial (k - 1)x^2 + kx + 1 is -3, then the value of k
Asked by ruchipandey20071978 | 21 May, 2023, 09:57: PM
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CBSE 10 - Maths
If the sum of the zeors of the polynomial f (x)=2x^3 - 3kx^2 +4x - 5 is 6 , then the value of k is
Asked by ruchipandey20071978 | 21 May, 2023, 05:32: PM
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CBSE 10 - Maths
If two zeros of x^3 + x^2 - 5x - 5 are √5 and - √5, then its third zero is
Asked by ruchipandey20071978 | 21 May, 2023, 05:29: PM
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CBSE 10 - Maths
The value of k for which the system of equestions kx-y=2 and 6x-2y=3 has a uniqe solution is..
Asked by ruchipandey20071978 | 11 May, 2023, 06:55: AM
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CBSE 10 - Maths
a regular polygon has 20 sides. how many triangles can be drawn by using the vertices but not using the sides?
Asked by gavhanenisha0310 | 09 May, 2023, 04:10: PM
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