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The Mean of three numbers is 10 more than than the least number and 15 less than the highest. Their median is 5. Find the sum of the three numbers.
Read Solution (Total 12)
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- given: x+y+z/3=m
y=5;
m=x+10;x=m-10;
z=m+15
sub in above give eq u will get m= 10;
sub in x, y, z =0,5,25=total=30 - 12 years agoHelpfull: Yes(29) No(3)
- numbers are 0 5 25
so sum is =30 - 12 years agoHelpfull: Yes(26) No(6)
- options are: a) 30 b) 20 c) 5 d) 25
option itself shows
30 only the divisible of 3.
so ans is 30. - 9 years agoHelpfull: Yes(9) No(0)
- mean of 3 no's x+y+z/3=10
then x+y+z=30
sum of 3 no's=30 - 9 years agoHelpfull: Yes(8) No(4)
options are: a) 30 b) 20 c) 5 d) 25
option itself shows
30 only the divisible of 3.
so ans 30.- 10 years agoHelpfull: Yes(6) No(0)
- @Abhishek jain
median is the middle term of numbers in case of odd nos
& in case of even nos median is (n/2)th term + (n/2 + 1)th term
& here 2nd term is 5(median) - 12 years agoHelpfull: Yes(4) No(0)
- (x-10)+5+(x+15)=3x
x=10
so total sum =30 - 9 years agoHelpfull: Yes(3) No(1)
- @shashank- how can we calculate median?
- 12 years agoHelpfull: Yes(2) No(3)
- thanx kajal
- 12 years agoHelpfull: Yes(2) No(0)
- answer is 30
- 12 years agoHelpfull: Yes(1) No(0)
- Current trend
- 9 years agoHelpfull: Yes(0) No(0)
- Distnace between House and T junction = 20 x 2 = 40.
ie., B reached T at 11 am.
B continued to right after 11 am and travelled upto 2. So distance covered by him = 3 x 40 = 120
A reached T at 12 noon and travelled upto 2 So distanced travelled by him = 2 x 20 = 40
So total distance between them = 120 + 40 = 160 km - 8 years agoHelpfull: Yes(0) No(0)
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