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q) one year ago the ratio of gauravs and sachins age was
6:7 respectively four years hence , the ratio would become
7: 8 how old is sachin ?
/// any one tell wheather my procedure ids correct or
wrong///
let gauravs and sachins age one year ago was 6X and 7X
respectively
four years hence gauravs age is =6X+4
four years hence sachins age is =7X+4
6x+4/7x+4=7/8
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Answer / rajesh basha
take the ages one year back as 6X and 7X
at present their ages are 6X+1 and 7X+1
after 4 years from now their ages will be 6X+5 and 7X+5
then (6X+5)/(7X+5)=7/8
=> 48X+40=49X+35
=> X=5
now sachin's age is 7x5+1=36
| Is This Answer Correct ? | 76 Yes | 20 No |
Answer / lalit choudhary
Let Gaurav's and Sachin's ages one year ago be 6x and 7x years respectively. Then, Gaurav's age
4 years hence = (6x + 1) + 4 = (6x + 5) years.
Sachin's age 4 years hence = (7x + 1) + 4 = (7x + 5) years.
6x+5 = 7 8(6x+5) = 7 (7x + 5) 48x + 40 = 49x + 35 x = 5.
7x+5 8
Hence, Sachin's present age = (7x + 1) = 36 years.
| Is This Answer Correct ? | 12 Yes | 5 No |
Answer / saurabh
answer would be like this...............
6x+5=7
------
7x+5=8
solving the equation...
48x+40=49x+35
or
1x=5
i.e
sachin's age is 6(5)+5
or 35 year
.............
| Is This Answer Correct ? | 16 Yes | 16 No |
Answer / kaviarasan
Take 6:7 =》 6x : 7x ( one year
ago )
After four years ( (take that -1 year ago)+ 3 years = 4 years )
Their ages = 7:8
Let,
(6x+4) ÷ (7x+4) = 7÷8
(Cross multiplied)
6x ×8 =48x , 4×8=32
7x ×7=49x, 4×7=28
Let's take,
48x + 32 = 49x + 28
49 x - 48 x = 32-28
1x =4
Then sachin's age is now,
4 × 8 =32
| Is This Answer Correct ? | 1 Yes | 1 No |
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