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If 830 is divided into three parts such that 4 times the first part is equal to 5 times the second and 7 times the third, then the first part is?
Read Solution (Total 6)
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- 350
Let the parts are X, Y and Z
as per the question,
4X=5Y=7Z=k (assume 4x,5y,7z is equal to k, where k is a constant)
Now X=k/4
Y=k/5
Z=k/7
since X+Y+Z=830
therefore k/4+k/5+k/7=830
k=1400
Now X=1400/4=350
- 12 years agoHelpfull: Yes(31) No(0)
- Rs 350
If x,y,z are three parts, then
4x=5y=7z= p (say)
x=p/4
y=p/5
z=p/7
as per condition
x+y+z=830
putting values of x,y,z and solving for p, we get
p=1400
x=350,y=280,z=200 - 12 years agoHelpfull: Yes(7) No(2)
- 830. divided into 3 parts A, B, C.
Acc to question.. B=4A/5 and C=4A/7 also.. A+B+C=830 (eq 1).
put value of B and C in eq 1. answer is A=350.
- 12 years agoHelpfull: Yes(3) No(0)
- 4A=5B=7C
A/4=B/5=C/7
a:b:c=35:28:20
83-830
35-?
answer is 350 - 7 years agoHelpfull: Yes(1) No(0)
- Since 4x=5y=7z
Simply put values of y and z in eq. x+y+z=830
Ans. will be 30. - 12 years agoHelpfull: Yes(0) No(14)
- Since 4x=5y=7z
Simply put values of y and z in eq. x+y+z=830
Ans. will be 350. - 12 years agoHelpfull: Yes(0) No(0)
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